Router downstream/upstream power levels and SNR

[myk4030]

My questions (my setup is i have an amp connected from the street, then to a 4 way splitter that distributes around the house):

1. I know that downstream power levels need to be at -15 to +15. I have a couple of power levels at 15 and above, but i noticed that i have better internet speeds with this power level. Is this possible?

2. If the limits are +15, why am i not getting disconnected from the internet or slow speeds? what channels does my download use? is the reason why im not getting disconnected is coz im not using the channel that has high power levels?

3. i noticed that i have random router restarts. not alot. maybe 2 times a month. is this because of the high power levels?

4. i also noticed alot of t3 timeouts in the day. maybe like 5-8 t3 timeouts per day.

Downstream
1 Locked QAM256 1 615000000 Hz 14.9 dBmV 38.3 dB 0 0
2 Locked QAM256 2 621000000 Hz 15.0 dBmV 38.3 dB 0 0
3 Locked QAM256 3 627000000 Hz 15.2 dBmV 38.2 dB 0 0
4 Locked QAM256 4 633000000 Hz 15.0 dBmV 38.2 dB 0 0
5 Locked QAM256 5 639000000 Hz 15.1 dBmV 38.0 dB 0 0
6 Locked QAM256 6 645000000 Hz 14.7 dBmV 38.1 dB 0 0
7 Locked QAM256 7 651000000 Hz 14.6 dBmV 38.0 dB 0 0
8 Locked QAM256 8 657000000 Hz 14.7 dBmV 38.1 dB 0 0
9 Locked QAM256 9 663000000 Hz 14.4 dBmV 37.9 dB 0 0
10 Locked QAM256 10 669000000 Hz 14.0 dBmV 37.8 dB 0 0
11 Locked QAM256 11 675000000 Hz 13.8 dBmV 37.1 dB 1 0
12 Locked QAM256 12 681000000 Hz 14.0 dBmV 37.7 dB 0 0
13 Locked QAM256 13 687000000 Hz 13.3 dBmV 37.3 dB 0 0
14 Locked QAM256 14 693000000 Hz 13.3 dBmV 37.5 dB 0 0
15 Locked QAM256 15 699000000 Hz 13.1 dBmV 37.1 dB 0 0
16 Locked QAM256 16 705000000 Hz 13.0 dBmV 37.2 dB 0 0

Upstream
1 Locked ATDMA 26 5120 Ksym/sec 23300000 Hz 43.8 dBmV
2 Locked TDMA 25 2560 Ksym/sec 18500000 Hz 42.8 dBmV
3 Locked ATDMA 27 5120 Ksym/sec 30600000 Hz 43.8 dBmV
4 Locked TDMA 28 2560 Ksym/sec 37000000 Hz 41.3 dBmV

 

[Ralston18]

Do you have any browser access to your modem's admin pages. May be able to see some test results captured therein.

Here is a very good site for more information:

http://volpefirm.com/docsis_timout_descriptions/

What else is connected into that 4-way splitter?

And check your external connections and cables as best you can. Look for bare metal showing on the cables, other splitters, etc.

Could be a loose connection, corrosion, kinks, etc.

Also look at the power outlets and circuits being used. Could be intermittent power losses due to a poor electrical connection.