Comcast Xfinity Internet turning off

johnalmeidaii

Reputable
Jul 12, 2015
4
0
4,510
Ok this might sound weird at first but bare with me please because I have run out of options and tech support on Comcast's end has been no help.

btw I have had this service with no problems for almost a year now.

So I just paid for my Comcast bill about a week ago for a new month of service and everyday since then around 2am-7am the router/modem light for online turns off and I lose all internet access wifi and wired connections I am still able to login to 10.0.0.1 and it shows in the top right that my internet is indeed off, so I call tech support at first she tells me everything looks ok on her end so she has me reset the modem and she will send a signal to it to see if it will respond, it fails then she tells me now there is just all red flags on her end and my modem is not responding at all to anything she tries so she schedules a technician to come out and check everything, the next morning when I wake up around 10am the internet is working fine nothing is wrong so I go about my business go out of town for thr day so I don't know if it went off that night the next day when the tech is supposed to come at 2pm because I needed to be at work at 4:00, I get a call at 3:48, I don't answer so the appointment will be cancelled as there is no way I can have him check out everything and still make it work on time, so I goto work and when I get home around 2:30 am the internet is off and completely unresponsive the same as the other night I call tech support again to see if this guy might notice something the other lady didn't but it was the same run of the mill, turn it off, unplug it, ill send a signal, turn it on, check the wires blah blah blah, all in vain as nothing helped so he suggested to have a tech come out to check everything to see if maybe its the line or modem I told him ill wait until tomorrow to see what happens with the internet and see if it comes back on and go from there.
So I stay up all night and right at 6:56 the online light starts to blink and the modem shuts off and turns back on with all the lights on and my wifi connection appears again still can't connect to anything all the lights were just blinking in random orders until the clock hit right at 7am all lights went to normal and my internet connection was back at full speed like it was never off.

So my question is what could be causing it to do this?

A bad wire would make sense if it went out at random times during the day and same for a bad modem but to turn off the around the same to until around the same time and for the modem to actually restart itself like it did this morning makes it seem like Comcast is turning it off at night and reactivating my service in the morning.

Anyone have any ideas?
 
I'm guessing my problem may just be too complicated or my wording made it too confusing for anyone to attempt at answering any advice would be great I you don't understand something I said just ask,
I will help you as much as I can to help me lol Thanks to anyone in advance.
 
John,

What router/modem do you have - i.e., make and model?

Can you view the router/modem logs.....? Would be useful to see what errors are being recorded.

Any chance that the modem/router has been configured for "parental" controls that turn off the device during the 2 am to 7 am hours. However I think that the device would not present "red flags" to Comcast in that case.

Are you aware of any night construction in your area? Maybe the cables are being disconnected during on-going work. However, I would not expect precise disconnection/connection times.

(Side note: We had a "competitor" installing fiber cables on our streets a few years back. They always seemed to somehow cut Comcast's lines.... Kept the local techs very busy.)

Overall the best thing is probably to insist on a Comcast Tech visit at a time that you can be home. And keep calling everytime you find the service to be down.
 
I have the technicolor/TC8305C.

Yes I can but only the ones from the last couple of days, here is the System logs;

Time Priority Description
Thu Jul 16 09:46:30 2015 Notice (6) WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INTERFERENCE
Thu Jul 16 09:31:26 2015 Notice (6) WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INTERFERENCE
Thu Jul 16 06:04:06 2015 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.1;CM-VER=3.0;
Thu Jul 16 06:02:17 2015 Critical (3) REG RSP not received;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.1;CM-VER=3.0;
Thu Jul 16 06:02:14 2015 Notice (6) TLV-11 - unrecognized OID;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.1;CM-VER=3.0;
Thu Jul 16 06:02:04 2015 Warning (5) ToD request sent - No Response received;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 06:02:04 2015 Warning (5) DHCP WARNING - Non-critical field invalid in response ;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 06:02:03 2015 Critical (3) DHCP FAILED - Request sent, No response;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 06:01:43 2015 Critical (3) DHCP FAILED - Discover sent, no offer received;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 06:01:40 2015 Notice (6) Honoring MDD; IP provisioning mode = IPv4
Thu Jul 16 06:01:33 2015 Warning (5) Lost MDD Timeout;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 06:01:25 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 06:00:44 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 06:00:32 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 06:00:23 2015 Critical (3) TFTP Request Retries exceeded, CM unable to register
Thu Jul 16 06:00:23 2015 Critical (3) TFTP failed - Request sent - No Response;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:59:43 2015 Notice (6) Honoring MDD; IP provisioning mode = IPv6
Thu Jul 16 05:59:37 2015 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:59:29 2015 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:59:08 2015 Error (4) T6 Timeout and retries exceeded;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.1;CM-VER=3.0;
Thu Jul 16 05:59:08 2015 Critical (3) REG RSP not received;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.1;CM-VER=3.0;
Thu Jul 16 05:58:57 2015 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.1;CM-VER=3.0;
Thu Jul 16 05:58:56 2015 Critical (3) REG RSP not received;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.1;CM-VER=3.0;
Thu Jul 16 05:58:53 2015 Notice (6) TLV-11 - unrecognized OID;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.1;CM-VER=3.0;
Thu Jul 16 05:58:09 2015 Notice (6) Honoring MDD; IP provisioning mode = IPv6
Thu Jul 16 05:57:44 2015 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:57:40 2015 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:57:29 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:56:48 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:56:26 2015 Critical (3) TFTP Request Retries exceeded, CM unable to register
Thu Jul 16 05:56:26 2015 Critical (3) TFTP Failed - OUT OF ORDER packets;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:56:18 2015 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:55:50 2015 Warning (5) ToD request sent - No Response received;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:55:27 2015 Notice (6) Honoring MDD; IP provisioning mode = IPv6
Thu Jul 16 05:55:00 2015 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:54:43 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:54:10 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:54:09 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:54:03 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:53:46 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:53:40 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:53:18 2015 Warning (5) Lost MDD Timeout;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:53:10 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:52:39 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:52:22 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:52:00 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:51:59 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:51:41 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:51:24 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:51:08 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Time Priority Description
Thu Jul 16 05:51:06 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:50:43 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:50:33 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:50:32 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:50:27 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:50:04 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:50:02 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:49:50 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:49:48 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:49:47 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:49:34 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:49:30 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:49:13 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:48:51 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:48:50 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:48:35 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:48:18 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:47:37 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:47:20 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:46:55 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:46:54 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:46:39 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:46:23 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:45:51 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:45:34 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:45:32 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:45:31 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:45:26 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:45:09 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:45:07 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:45:06 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:44:28 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:44:12 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:43:44 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:43:42 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:43:31 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:43:14 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:42:33 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:42:17 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:42:06 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:42:05 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:41:52 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:41:50 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:41:50 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:41:33 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:41:19 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:41:02 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:40:31 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:40:30 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;
Thu Jul 16 05:40:29 2015 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=58:23:8c:bf:c1:62;CMTS-MAC=00:01:5c:75:da:53;CM-QOS=1.0;CM-VER=3.0;


And here is the firewall logs;

Description Count Last Occurrence Target Source
DENY: Inbound or outbound access request 353 Thu Jul 16 15:12:27 2015 73.41.178.151:5060 209.126.111.5:5068
IP packet w/MC or BC SRC addr 2 Thu Jul 16 12:02:55 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 3 Thu Jul 16 12:02:01 2015 73.41.178.151:22 123.196.116.66:55661
IP packet w/MC or BC SRC addr 2 Thu Jul 16 11:58:02 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 148 Thu Jul 16 11:47:30 2015 73.41.178.151:21320 199.168.141.51:12200
IP packet w/MC or BC SRC addr 2 Thu Jul 16 07:19:35 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 149 Thu Jul 16 07:17:50 2015 73.41.178.151:465 93.189.25.174:51675
IP packet w/MC or BC SRC addr 4 Wed Jul 15 21:54:01 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 4 Wed Jul 15 21:50:48 2015 73.41.178.151:91 64.125.239.170:55957
IP packet w/MC or BC SRC addr 2 Wed Jul 15 21:41:47 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 1 Wed Jul 15 21:40:20 2015 73.41.178.151:8080 61.183.128.6:55741
IP packet w/MC or BC SRC addr 2 Wed Jul 15 21:37:54 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 3501 Wed Jul 15 21:37:07 2015 73.41.178.151:22 115.238.91.153:51636
IP packet w/MC or BC SRC addr 2 Tue Jul 14 12:32:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 1 Tue Jul 14 12:32:11 2015 17.143.161.160:5223 10.0.0.5:50769
IP packet w/MC or BC SRC addr 2 Tue Jul 14 12:32:09 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 17 Tue Jul 14 12:32:06 2015 17.143.161.160:5223 10.0.0.5:50769
IP packet w/MC or BC SRC addr 4 Tue Jul 14 12:17:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 20 Tue Jul 14 12:17:09 2015 73.41.178.151:50756 17.143.164.147:5223
IP packet w/MC or BC SRC addr 4 Tue Jul 14 12:07:26 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 2 Tue Jul 14 12:03:58 2015 73.41.178.151:8888 61.183.128.6:43066
IP packet w/MC or BC SRC addr 4 Tue Jul 14 12:02:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 24 Tue Jul 14 12:01:40 2015 17.143.163.91:5223 10.0.0.5:50742
IP packet w/MC or BC SRC addr 4 Tue Jul 14 11:47:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 32 Tue Jul 14 11:46:54 2015 73.41.178.151:50726 17.172.232.199:5223
IP packet w/MC or BC SRC addr 4 Tue Jul 14 11:32:29 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 17 Tue Jul 14 11:30:59 2015 17.110.228.34:5223 10.0.0.5:50713
IP packet w/MC or BC SRC addr 4 Tue Jul 14 11:17:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 25 Tue Jul 14 11:16:49 2015 73.41.178.151:50691 17.110.224.15:5223
IP packet w/MC or BC SRC addr 2 Tue Jul 14 11:02:28 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 1 Tue Jul 14 11:02:27 2015 73.41.178.151:8118 61.183.128.6:46922
IP packet w/MC or BC SRC addr 2 Tue Jul 14 11:02:25 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 20 Tue Jul 14 11:01:44 2015 73.41.178.151:50671 17.110.230.20:5223
IP packet w/MC or BC SRC addr 4 Tue Jul 14 10:51:11 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 3 Tue Jul 14 10:48:21 2015 73.41.178.151:50672 50.207.214.128:443
IP packet w/MC or BC SRC addr 4 Tue Jul 14 10:47:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 23 Tue Jul 14 10:46:26 2015 73.41.178.151:50658 17.143.164.32:5223
IP packet w/MC or BC SRC addr 8 Tue Jul 14 10:33:45 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 19 Tue Jul 14 10:29:38 2015 17.172.239.164:5223 10.0.0.5:50649
IP packet w/MC or BC SRC addr 4 Tue Jul 14 10:17:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 24 Tue Jul 14 10:15:31 2015 73.41.178.151:50637 17.172.239.138:5223
IP packet w/MC or BC SRC addr 4 Tue Jul 14 10:02:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 24 Tue Jul 14 10:00:28 2015 73.41.178.151:50615 17.172.232.185:5223
IP packet w/MC or BC SRC addr 4 Tue Jul 14 09:47:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 25 Tue Jul 14 09:45:18 2015 73.41.178.151:50605 17.110.229.204:5223
IP packet w/MC or BC SRC addr 4 Tue Jul 14 09:32:29 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 30 Tue Jul 14 09:30:05 2015 73.41.178.151:23 182.34.74.196:3540
IP packet w/MC or BC SRC addr 8 Tue Jul 14 09:17:13 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 17 Tue Jul 14 09:15:02 2015 73.41.178.151:9064 80.82.79.104:47296
IP packet w/MC or BC SRC addr 4 Tue Jul 14 09:02:13 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 21 Tue Jul 14 08:58:41 2015 73.41.178.151:50562 17.110.226.213:5223
IP packet w/MC or BC SRC addr 4 Tue Jul 14 08:47:13 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 18 Tue Jul 14 08:45:45 2015 73.41.178.151:17131 24.54.154.189:53
IP packet w/MC or BC SRC addr 4 Tue Jul 14 08:32:29 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 23 Tue Jul 14 08:30:24 2015 73.41.178.151:33086 37.187.154.28:55914
IP packet w/MC or BC SRC addr 4 Tue Jul 14 08:17:13 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 1 Tue Jul 14 08:16:26 2015 73.41.178.151:17131 208.64.123.100:80
IP packet w/MC or BC SRC addr 4 Tue Jul 14 08:15:43 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 32 Tue Jul 14 08:12:56 2015 73.41.178.151:17131 66.45.242.201:53
IP packet w/MC or BC SRC addr 4 Tue Jul 14 08:02:29 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 33 Tue Jul 14 08:01:41 2015 73.41.178.151:0 177.48.240.120:0
IP packet w/MC or BC SRC addr 4 Tue Jul 14 07:47:13 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 19 Tue Jul 14 07:44:45 2015 73.41.178.151:22 93.174.93.177:60623
IP packet w/MC or BC SRC addr 4 Tue Jul 14 07:32:31 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 25 Tue Jul 14 07:27:10 2015 73.41.178.151:50482 17.172.239.47:5223
IP packet w/MC or BC SRC addr 2 Tue Jul 14 07:17:13 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 1 Tue Jul 14 07:17:11 2015 73.41.178.151:0 80.78.159.71:0
IP packet w/MC or BC SRC addr 6 Tue Jul 14 07:17:10 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 21 Tue Jul 14 07:11:30 2015 73.41.178.151:50467 17.143.160.36:5223
IP packet w/MC or BC SRC addr 4 Tue Jul 14 07:02:13 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 23 Tue Jul 14 06:58:33 2015 73.41.178.151:5900 183.89.99.220:4573
IP packet w/MC or BC SRC addr 4 Tue Jul 14 06:47:13 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 17 Tue Jul 14 06:45:05 2015 73.41.178.151:0 74.111.237.214:0
IP packet w/MC or BC SRC addr 4 Tue Jul 14 06:32:29 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 26 Tue Jul 14 06:32:16 2015 73.41.178.151:17131 180.97.33.107:80
IP packet w/MC or BC SRC addr 4 Tue Jul 14 06:17:13 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 23 Tue Jul 14 06:13:15 2015 73.41.178.151:50431 50.207.214.128:443
IP packet w/MC or BC SRC addr 4 Tue Jul 14 06:02:30 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 36 Tue Jul 14 06:01:42 2015 54.230.146.105:443 10.0.0.5:50411
IP packet w/MC or BC SRC addr 4 Tue Jul 14 05:47:13 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 160 Tue Jul 14 05:46:42 2015 73.41.178.151:50375 194.68.28.102:443
IP packet w/MC or BC SRC addr 4 Tue Jul 14 01:02:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 110 Tue Jul 14 01:01:58 2015 73.41.178.151:17131 94.26.82.131:53
IP packet w/MC or BC SRC addr 4 Tue Jul 14 00:32:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 22 Tue Jul 14 00:30:45 2015 73.41.178.151:50163 194.68.29.8:443
IP packet w/MC or BC SRC addr 4 Tue Jul 14 00:17:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 1 Tue Jul 14 00:13:46 2015 73.41.178.151:443 141.212.122.93:47693
IP packet w/MC or BC SRC addr 4 Tue Jul 14 00:09:56 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 5 Tue Jul 14 00:08:15 2015 73.41.178.151:21320 199.168.141.51:12200
IP packet w/MC or BC SRC addr 2 Tue Jul 14 00:02:33 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 1 Tue Jul 14 00:02:32 2015 17.143.161.21:5223 10.0.0.5:50139
IP packet w/MC or BC SRC addr 2 Tue Jul 14 00:02:26 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 21 Tue Jul 14 00:02:24 2015 17.143.161.21:5223 10.0.0.5:50139
IP packet w/MC or BC SRC addr 2 Mon Jul 13 23:47:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 1 Mon Jul 13 23:47:11 2015 17.143.160.30:5223 10.0.0.5:50121
IP packet w/MC or BC SRC addr 2 Mon Jul 13 23:47:09 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 17 Mon Jul 13 23:47:03 2015 17.143.160.30:5223 10.0.0.5:50121
IP packet w/MC or BC SRC addr 4 Mon Jul 13 23:32:12 2015 255.255.255.255:68 255.255.255.255:67
DENY: Inbound or outbound access request 22 Mon Jul 13 23:32:02 2015 73.41.178.151:50109 17.143.163.154:5223
IP packet w/MC or BC SRC addr 4 Mon Jul 13 23:17:12 2015 255.255.255.255:68 255.255.255.255:67

No parental controls set, I am the owner of the account and router is in my room, so I am the only one who has access to it and its settings and I have never changed them and when I checked the settings a couple of days ago it said no parental settings activated.
As for night construction, there is none around me.
The main line from my box also connects to the power pole that is behind my house so roughly a good 65-85 feet from my box cable is completely off the ground secured to the wall of my house until it reaches the electrical box where a green ground cable is connected and then the wire shoots from there straight to the pole still connected no signs of error or anything is wrong.

Lastly I am using the service right now and everything is working fine like it always does during the day hours.
Here is some more information from today that might help;
Downstream Channel Bonding Value
Index 1 2 3 4 5 6 7 8
Lock Status Locked Not locked Not locked Not locked Not locked Not locked Not locked Not locked
Frequency 645 MHz
SNR 41.9 dB
Power -2.3 dBmV
Modulation 256 QAM



Upstream Channel Bonding Value
Index 1 2 3 4
Lock Status Locked Not locked Not locked Not locked
Frequency 18 MHz
Symbol Rate 2560 Ksym/sec
Power Level 37.3 dBmV
Modulation ATDMA
Channel ID 53
System Software Version
eMTA & DOCSIS Software Version: 01.E6.01.22.16
Packet Cable: 2.0

System Hardware
Model: TC8305C
HW Identifier: 1.5
Serial Number: 1429101831
Processor Speed: 600 MHz
DRAM: 128 MB
Flash: 64 MB
 
First of all I think the firewall log indicates that the firewall is just doing its job.

The System Log entries do show that there is a problem. Just "google" the various acronyms etc. and you will see what I mean.

For now I am going to set aside the "INTERFERENCE" entries at the beginning. Only because things seem to be up and running around 9:00 a.m. but it appears that you are experiencing interference with respect to wireless use.

That leaves it, at least in my mind, to be very much a problem on Comcast/Xfinity's side. Especially with the 2:00 a.m. to 7:00 a.m. consistency.

Look at the logs during the transistion time of say 1:30 a.m. to 2:30 a.m. or 6:30 a.m. to 7:30 a.m.. See if you can identify a particular error that starts at 2:00 a.m. or ends at 7:00 a.m.. Or at least close to those times.....

Keep printouts of the logs in any case.

Then see if you can schedule a tech for the morning hours when you can be home.

Most likely you will need to keep calling them until they finally send someone out or the problem mysteriously vanishes (after someone took a serious look at the issue).

Not sure what else to suggest or offer at this time. But I do think that the problem is outside your control.