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Internet randomly dropping connection, new modem indicates errors. Mbps is all over the place.

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Internet randomly dropping connection, new modem indicates errors. Mbps is all over the place.

We have been having internet issues for a while now. The connection works but the speeds are very low (we pay for 300mbps) and on a good day, get around 80mbps. (This is with hardlined devices to the modem, not wireless speeds). I have suspected something is dropping connection randomly, as despite my continued efforts anything that requires a constant online connection randomly discconects for a few secons about every 90 minutes. 

We use a netgear cm600 modem, which is brand new, a netgear nighthawk ac2300, brand new, and I have recently replaced the coax cable to the modem, the one and only cable splitter on the line that comes in to my apt, and both ethernet cable lines to my game console and laptop. I recently discovered you can check the modems status (as was checking the router not the modem before) and have discovered that the event log is full of errors and warnings. 

I replaced the splitter this morning, (not a garbage one from a store), which seems to have stopped the critical errors on the modem. But we are still getting the following error message, as the time keeps updating, which from what I'm reading means there is a problem on the line. Is it time to call a tech?

Time 2020-04-26, 17:26:33
Priority Warning (5) 
Description MDD message timeout;CM-MAC=10:0c:6b:d0:48:20;CMTS-MAC=00:01:5c:6a:6c:57;CM-QOS=1.1;CM-VER=3.0;

I am no longer getting critical erros after replacing the splitter this morning. This was the critical message we were getting tons of before I looked it up and suggestion was to check cable splitters. This is a copy of the critical error. 

2020-04-26, 07:21:16
Critical (3)
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:0c:6b:d0:48:20;CMTS-MAC=00:01:5c:6a:6c:57;CM-QOS=1.1;CM-VER=3.0;

 

I can post the modems cable connection info here is that helps. Spaced out the first parts of downstream and upstream. Not sure if any other info would be helpful? Just curious if its time to get someone out here. 🙂


Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1                 Locked         QAM256     1 505750000 Hz     5.6 dBmV          38.5 dB            0           0
2 Locked QAM256 2 511750000 Hz 6.0 dBmV 41.0 dB 0 0
3 Locked QAM256 3 517750000 Hz 5.8 dBmV 41.7 dB 0 0
4 Locked QAM256 4 523750000 Hz 5.6 dBmV 42.7 dB 0 0
5 Locked QAM256 5 529750000 Hz 6.3 dBmV 43.3 dB 0 0
6 Locked QAM256 6 535750000 Hz 6.3 dBmV 40.7 dB 0 0
7 Locked QAM256 7 541750000 Hz 6.1 dBmV 37.2 dB 0 0
8 Locked QAM256 8 547750000 Hz 6.2 dBmV 41.3 dB 0 0
9 Locked QAM256 9 553750000 Hz 6.5 dBmV 43.4 dB 0 0
10 Locked QAM256 10 559750000 Hz 6.3 dBmV 42.9 dB 0 0
11 Locked QAM256 11 565750000 Hz 6.7 dBmV 43.4 dB 0 0
12 Locked QAM256 12 571750000 Hz 7.0 dBmV 43.5 dB 0 0
13 Locked QAM256 13 577750000 Hz 6.7 dBmV 43.2 dB 0 0
14 Locked QAM256 14 583750000 Hz 7.0 dBmV 43.4 dB 0 0
15 Locked QAM256 15 589750000 Hz 7.0 dBmV 43.2 dB 0 0
16 Locked QAM256 16 595750000 Hz 7.1 dBmV 43.3 dB 0 0
17 Locked QAM256 17 601750000 Hz 7.0 dBmV 43.2 dB 0 0
18 Locked QAM256 18 607750000 Hz 7.0 dBmV 43.1 dB 0 0
19 Locked QAM256 19 613750000 Hz 7.1 dBmV 41.9 dB 0 0
20 Locked QAM256 20 619750000 Hz 7.4 dBmV 41.9 dB 0 0
21 Locked QAM256 21 625750000 Hz 7.4 dBmV 43.2 dB 0 0
22 Locked QAM256 22 631750000 Hz 7.1 dBmV 32.0 dB 2326 6
23 Locked Unknown 23 637750000 Hz 7.5 dBmV 23.8 dB 16596 37151
24 Locked QAM256 24 643750000 Hz 7.4 dBmV 34.3 dB 314 137


Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1              Locked            ATDMA           7                          5120 Ksym/sec      30100000 Hz    46.0 dBmV
2 Locked ATDMA 5 5120 Ksym/sec 17300000 Hz 47.5 dBmV
3 Locked ATDMA 6 5120 Ksym/sec 23700000 Hz 47.0 dBmV
4 Locked ATDMA 8 5120 Ksym/sec 36500000 Hz 45.0 dBmV
5 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
6 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
7 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
8 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV


Current System Time: Sun Apr 26 17:55:39 2020
System Up Time: 10:29:12