[SOLVED] Internet disconnects at around the same time every night ?

Aug 9, 2021
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My internet has been disconnecting ever since I got a replacement router from Cox, when mine lost all power due to a storm.

New router seems to be disconnecting at the same time (2:30-3:30 am, and sometimes a little after) every night.
This is what shows in my logs (it just happened like 25 minutes ago)
[IGD][2723]: Add Port mapping :9308 to 192.168.0.11:93082021/8/9 02:57:19Notice
[IGD][2723]: Add Port mapping :9308 to 192.168.0.11:93082021/8/9 02:57:15Notice

Any help would be appreciated

Router: panoramic tg1682 from Cox
 
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Solution
You can't change the lease time on the WAN the ISP sets that. The thing that you are looking at sets the lease for the PC in your house that your router is giving LAN IP to. Now in theory at least it could fail in 24hrs when the lease is 48hrs. The DHCP server will try to renew the lease before it expires. At the 1/2 point tends to be the first time it tries. It should not terminate it before it should try again a couple times. What can happen is if the ISP is responding to the request to renew and telling it no. You would generally get a different IP if this happens. This is highly unlikely.

This sounds like the modem is actually rebooting or it is thinking your internet got disconnected and is starting to reconnect...
My internet has been disconnecting ever since I got a replacement router from Cox, when mine lost all power due to a storm.

New router seems to be disconnecting at the same time (2:30-3:30 am, and sometimes a little after) every night.
This is what shows in my logs (it just happened like 25 minutes ago)
[IGD][2723]: Add Port mapping :9308 to 192.168.0.11:93082021/8/9 02:57:19Notice
[IGD][2723]: Add Port mapping :9308 to 192.168.0.11:93082021/8/9 02:57:15Notice

Any help would be appreciated

Router: panoramic tg1682 from Cox
That log doesn't say anything. It is possible that COX is rebooting it for updates. You should look look at the GUI to see what the DHCP lease for the WAN is. It is possible that COX has set the DHCP lease duration to 48 hours. That would cause it to renew the DHCP lease every 24 hours.
You are going to have to dig deeper. Look at the LEDs on the unit when this happens.
 
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That log doesn't say anything. It is possible that COX is rebooting it for updates. You should look look at the GUI to see what the DHCP lease for the WAN is. It is possible that COX has set the DHCP lease duration to 48 hours. That would cause it to renew the DHCP lease every 24 hours.
You are going to have to dig deeper. Look at the LEDs on the unit when this happens.
Yes i did notice that the lease was set to 48 hours, although I did not know what this means. If i set the lease to Forever, would this solve my problem of the internet disconnecting every night?

The LED on the unit all of the lights go off, and the US/DS light is flashing, until the rest of the lights come on in about 2-5 minutes. The process also may repeat itself 1-2 times withn the hour or two that it happens (sometimes going quicker than other times).

Edit again: I had also read somewhere that UPNP may be causing an issue like this. It is enabled on my router settings currently. I have no clue when it comes to stuff like this so im just throwing out as much info as I can. Thank you for the response.
 
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You can't change the lease time on the WAN the ISP sets that. The thing that you are looking at sets the lease for the PC in your house that your router is giving LAN IP to. Now in theory at least it could fail in 24hrs when the lease is 48hrs. The DHCP server will try to renew the lease before it expires. At the 1/2 point tends to be the first time it tries. It should not terminate it before it should try again a couple times. What can happen is if the ISP is responding to the request to renew and telling it no. You would generally get a different IP if this happens. This is highly unlikely.

This sounds like the modem is actually rebooting or it is thinking your internet got disconnected and is starting to reconnect. Check the logs again you should see messages. I am not sure on that device, maybe there is more than 1 log since it has both a modem and a router.

It is strange that is happens on such a regular schedule.

I would still check to see what the power levels are in the router, most important check the upload levels. The exact values depend on the type of docsis and it is a pretty big table so I will let you search google for the recommended values.
 
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Solution

CM Error Codewords
Unerrored Codewords28657086452865714975286571481528656986252865726926286568976128657221972865704015286571960628067926492806775878286571459028657173452865729738286573254628657218992806825566286573439528657200132865733499286571589828657368702865738804286570885700000000
Correctable Codewords4782515155295803475865805401593550083540470466853995184500354074334483253015429499356095214555600000000
Uncorrectable Codewords822116085168612379296692910615197232211276694202704900016355125551086410136109531050510138134671030311002105881114300000000

This is the table I believe you are talking about? I might as well post the power levels upstream\downstream as well.


DownstreamChannel Bonding Value
Index1234567891011121314151617181920212223242526272829303132
Lock StatusLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedNot LockedNot LockedNot LockedNot LockedNot LockedNot LockedNot LockedNot Locked
Frequency:951.00 MHz831.00 MHz837.00 MHz843.00 MHz849.00 MHz855.00 MHz861.00 MHz867.00 MHz873.00 MHz879.00 MHz885.00 MHz891.00 MHz897.00 MHz903.00 MHz909.00 MHz915.00 MHz921.00 MHz927.00 MHz933.00 MHz939.00 MHz945.00 MHz957.00 MHz963.00 MHz969.00 MHz
SNR38.61 dB37.64 dB37.64 dB37.64 dB37.64 dB37.36 dB37.36 dB37.64 dB37.64 dB37.64 dB37.64 dB37.64 dB38.61 dB37.36 dB38.61 dB37.64 dB38.61 dB38.61 dB38.98 dB38.61 dB37.64 dB37.64 dB37.64 dB38.98 dB
Power Level13.40 dBmV12.90 dBmV12.60 dBmV13.10 dBmV12.80 dBmV13.20 dBmV13.40 dBmV13.20 dBmV13.20 dBmV13.60 dBmV14.40 dBmV14.30 dBmV14.30 dBmV14.30 dBmV14.00 dBmV13.70 dBmV14.00 dBmV14.40 dBmV14.20 dBmV14.00 dBmV13.60 dBmV13.50 dBmV13.70 dBmV14.60 dBmV
Modulation256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM

��
UpstreamChannel Bonding Value
Index12345678
Lock StatusLockedLockedLockedLockedNot LockedNot LockedNot LockedNot Locked
Frequency:36.80 MHz17.60 MHz24.00 MHz30.40 MHz
Symbol Rate5120 KSym/s5120 KSym/s5120 KSym/s5120 KSym/s
Power Level44.50 dBmV45.25 dBmV44.00 dBmV45.00 dBmV
Modulation64 QAM64 QAM64 QAM64 QAM
Channel TypeDOCSIS2.0 (ATDMA)DOCSIS2.0 (ATDMA)DOCSIS2.0 (ATDMA)DOCSIS2.0 (ATDMA)
 
A signal of +14dB is very high. I don't know if that could be causing problems. But recommended signal max is +7dB.
Which row are you talking about specifically, the power? And is there a way to edit this? Should I go get a new replacement router? Its just annoying because I am using the internet during the times it disconnects, like clockwork every night. Thanks for replies!
 
You can't change the power this is a ISP thing. The ISP can put what is called a attenuator in the line. They have to use one that will reduce the signal levels on the download without affecting your upload.

You have a lot of uncorrected errors. This is packet loss. BUT the number of normal (unerrored) packets is also very high. It would be nice to have less errors but this is only a tiny percentage of the total. This number also means the modem is not actually fully rebooting. These numbers on many modem are cleared on a reboot and those numbers are large enough it is likely many days of traffic. Reducing the input power might help these but it is not likely your problem.

Does your ISP have support at night when the internet disconnects. Be nice to call them just before so they can see it.

I am surprised there are no entries in the log. A reboot can sometime clear the logs but because you see the lights go off this means the internet in dropping and the modem is reconnecting to the ISP. You generally see some kind of error messages when that happens.

Not sure what to suggest. It is likely something only the ISP can fix but it hard to say maybe their equipment has a log.
 
Which row are you talking about specifically, the power? And is there a way to edit this? Should I go get a new replacement router? Its just annoying because I am using the internet during the times it disconnects, like clockwork every night. Thanks for replies!
The +14 dB signal is the "Power Level" in the second table. It is something that the cable company should investigate. It is not a user adjustable item.