on 03-01-2022 13:18
Hi guys
My Broadband connection keeps dropping out. This seems related to the upload. As whenever i test the upload at speediest it gives me terrible speeds of less than 10 mbits, then the connection completely drops out during the test. This has been happening for the last couple of days. My network log on my router has been logging critical errors as the connection drops out
03-01-2022 13:04:38 | critical | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 06:14:04 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 06:13:56 | critical | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 06:13:52 | critical | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
I cant game or even chat on discord without the connection eventually dropping out on me every 10 minutes or so.
Any help would be appreciated.
Thanks
on 03-01-2022 15:08
Please post the power level stats from the Hub. Just copy and paste into several posts
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on 03-01-2022 16:10
Downstream bonded channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 | 155000000 | 6.5 | 39 | QAM 256 | 3 |
2 | 139000000 | 6.6 | 39 | QAM 256 | 1 |
3 | 147000000 | 6.5 | 39 | QAM 256 | 2 |
4 | 163000000 | 6.6 | 39 | QAM 256 | 4 |
5 | 171000000 | 6.5 | 39 | QAM 256 | 5 |
6 | 179000000 | 6.5 | 39 | QAM 256 | 6 |
7 | 187000000 | 6.6 | 39 | QAM 256 | 7 |
8 | 195000000 | 6.9 | 39 | QAM 256 | 8 |
9 | 203000000 | 6.8 | 39 | QAM 256 | 9 |
10 | 211000000 | 7.1 | 39 | QAM 256 | 10 |
11 | 219000000 | 7.3 | 39 | QAM 256 | 11 |
12 | 227000000 | 7.4 | 40 | QAM 256 | 12 |
13 | 235000000 | 7.3 | 39 | QAM 256 | 13 |
14 | 243000000 | 7.1 | 40 | QAM 256 | 14 |
15 | 251000000 | 7.3 | 40 | QAM 256 | 15 |
16 | 259000000 | 7.3 | 40 | QAM 256 | 16 |
17 | 267000000 | 7.1 | 40 | QAM 256 | 17 |
18 | 275000000 | 7.2 | 40 | QAM 256 | 18 |
19 | 283000000 | 7.4 | 40 | QAM 256 | 19 |
20 | 291000000 | 7.4 | 40 | QAM 256 | 20 |
21 | 299000000 | 7.1 | 40 | QAM 256 | 21 |
22 | 307000000 | 7.2 | 40 | QAM 256 | 22 |
23 | 315000000 | 7.3 | 40 | QAM 256 | 23 |
24 | 323000000 | 7.1 | 40 | QAM 256 | 24 |
25 | 331000000 | 6.8 | 40 | QAM 256 | 25 |
26 | 339000000 | 6.9 | 39 | QAM 256 | 26 |
27 | 347000000 | 7.1 | 40 | QAM 256 | 27 |
28 | 355000000 | 6.8 | 41 | QAM 256 | 28 |
29 | 363000000 | 6.6 | 41 | QAM 256 | 29 |
30 | 371000000 | 6.7 | 41 | QAM 256 | 30 |
31 | 379000000 | 6.9 | 41 | QAM 256 | 31 |
Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 | Locked | 39 | 16782 | 119412 |
2 | Locked | 39 | 317422 | 294502 |
3 | Locked | 39 | 6166 | 1991 |
4 | Locked | 39 | 186286 | 725439 |
5 | Locked | 39 | 10352 | 1250 |
6 | Locked | 39 | 109002 | 649012 |
7 | Locked | 39 | 0 | 152788 |
8 | Locked | 39 | 0 | 27 |
9 | Locked | 39 | 0 | 2 |
10 | Locked | 39 | 0 | 11 |
11 | Locked | 39 | 0 | 42 |
12 | Locked | 40 | 0 | 188 |
13 | Locked | 39 | 0 | 355 |
14 | Locked | 40 | 0 | 672 |
15 | Locked | 40 | 0 | 411 |
16 | Locked | 40 | 0 | 217 |
17 | Locked | 40 | 0 | 58 |
18 | Locked | 40 | 0 | 9 |
19 | Locked | 40 | 0 | 2 |
20 | Locked | 40 | 0 | 0 |
21 | Locked | 40 | 0 | 0 |
22 | Locked | 40 | 0 | 0 |
23 | Locked | 40 | 0 | 0 |
24 | Locked | 40 | 0 | 0 |
25 | Locked | 40 | 0 | 0 |
26 | Locked | 39 | 0 | 0 |
27 | Locked | 40 | 0 | 0 |
28 | Locked | 41 | 0 | 0 |
29 | Locked | 41 | 0 | 0 |
30 | Locked | 41 | 0 | 0 |
31 | Locked | 41 | 0 | 0 |
on 03-01-2022 16:13
Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 | 60300000 | 44.5 | 5120 | QPSK | 1 |
2 | 53700000 | 44.3 | 5120 | QPSK | 2 |
3 | 39400000 | 44 | 5120 | QPSK | 4 |
Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 | ATDMA | 0 | 13 | 0 | 0 |
2 | ATDMA | 0 | 13 | 0 | 0 |
3 | ATDMA | 0 | 13 | 0 | 0 |
on 03-01-2022 16:39
Here's a list of network errors just from the last 20 minutes. The connection is even more unstable now. Basically unusable
Network Log
Time Priority Description
03-01-2022 16:37:30 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:37:22 | critical | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:37:17 | critical | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:37:15 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:37:14 | critical | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:37:06 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:37:06 | critical | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:37:05 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:37:04 | critical | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:33:13 | critical | 16 consecutive T3 timeouts while trying to range on upstream channel 4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:33:13 | critical | Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:33:13 | critical | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:32:06 | critical | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:24:06 | critical | 16 consecutive T3 timeouts while trying to range on upstream channel 4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:24:06 | critical | Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:20:54 | critical | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:20:34 | critical | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:20:34 | critical | Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:20:34 | critical | 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:20:33 | critical | 16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:20:33 | critical | Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:19:18 | critical | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:19:16 | critical | Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:19:16 | critical | 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:17:17 | critical | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:17:17 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:16:54 | critical | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:13:56 | critical | 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:13:56 | critical | Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:13:32 | critical | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:13:27 | critical | Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-01-2022 16:13:27 | critical | 16 consecutive T3 timeouts while trying to range on upstream channel 4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
on 03-01-2022 19:31
on 04-01-2022 09:05
Hi @BaronVonStrudel,
Thank you for your posts. We're here to help.
I'm really sorry to hear you're having some issues with your connection lately. Can you please set up and share with us a live BQM so that we can take a closer look at what's going on with your connection?
Thanks,
on 04-01-2022 12:09
I currently can't post anything as my connection doesn't remain stable enough . I'm posting this from my mobile phone. Do I need a thinkbroadband account to post a live bqm graph?
on 04-01-2022 12:22
It settled down long enough for me to sign up and post
https://www.thinkbroadband.com/broadband/monitoring/quality/share/0199012695d6ccb421fd15ac11dc128e9b78e364
on 04-01-2022 14:14
Hey Zach, sorry i meant to mention . That last night the connection became stable and full speed for a little while. The upload modulation changed from QPSK to QAM64, if i remember correctly. The connection became stable and full speed. When i got up this morning it was worse than ever and the upload modulation had switched back to QPSK. I dont know if its at all related but i know the connection only becomes unstable when im uploading. For example a speed test will usually halt on the upload test cycle. Giving either an error or the router will crap out completely and lose connectivity giving me network log errors. I also meant to mention that im on a wired connection to the new HUB 5.
Thanks