lriley06
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Re: Packet loss, internet dropping out and thousands of post-RS errors per day
@Beth_G I would prefer not to put my Hub 3 into modem mode if possible? I'd quite like to avoid disrupting my internet connection as much as possible! I am happy to run any tests that you would like and consider myself reasonbly experienced with networking from my job 🙂125Views0likes1CommentRe: Packet loss, internet dropping out and thousands of post-RS errors per day
And the logs: Network Log Time Priority Description 13/12/2024 11:13:6 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 11/12/2024 23:40:55 notice DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 11/12/2024 23:40:55 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 10/12/2024 21:28:0 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 08/12/2024 11:40:55 notice DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 08/12/2024 11:40:55 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 07/12/2024 21:31:32 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 06/12/2024 18:29:29 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 06/12/2024 12:51:19 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 05/12/2024 16:00:21 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 05/12/2024 03:12:12 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 05/12/2024 00:48:1 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 04/12/2024 23:40:54 notice DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 04/12/2024 23:40:54 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 04/12/2024 21:21:9 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 04/12/2024 04:48:28 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 03/12/2024 19:37:26 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 03/12/2024 13:37:59 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 02/12/2024 18:42:9 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; 02/12/2024 01:57:25 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;123Views0likes0CommentsRe: Packet loss, internet dropping out and thousands of post-RS errors per day
The connection appears to be quite stable now, although I'm still sometimes getting down to 30mbps fairly frequently rather than the usual ~270mbps (yes I tested this when no other devices on my network were using the connection!). The errors are still regularly increasing so I doubt this is down to a maintenance incident. Here are the status pages now (haven't rebooted since the last time I posted them): Downstream bonded channels Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID 1 330750000 -1.2 38 256 qam 25 2 138750000 -0.5 36 256 qam 1 3 146750000 -0.7 37 256 qam 2 4 154750000 -1 37 256 qam 3 5 162750000 -1 37 256 qam 4 6 170750000 -0.9 37 256 qam 5 7 178750000 -0.9 37 256 qam 6 8 186750000 -1 37 256 qam 7 9 194750000 -1.2 38 256 qam 8 10 202750000 -1.4 37 256 qam 9 11 210750000 -1.5 37 256 qam 10 12 218750000 -1.7 38 256 qam 11 13 226750000 -2 37 256 qam 12 14 234750000 -2.2 37 256 qam 13 15 306750000 -1.5 38 256 qam 22 16 314750000 -1.5 38 256 qam 23 17 322750000 -1.5 38 256 qam 24 18 338750000 -0.9 38 256 qam 26 19 346750000 -0.7 38 256 qam 27 20 354750000 -0.5 38 256 qam 28 21 362750000 -0.7 38 256 qam 29 22 370750000 -1 38 256 qam 30 23 378750000 -1.5 38 256 qam 31 24 386750000 -2.4 38 256 qam 32 Downstream bonded channels Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors 1 Locked 38.6 33980 1 2 Locked 36.3 6719458 71356 3 Locked 37.3 5030271 37663 4 Locked 37.3 3394875 16046 5 Locked 37.6 2421839 7497 6 Locked 37.3 1847514 3706 7 Locked 37.6 1294674 1534 8 Locked 37.3 890789 559 9 Locked 38.6 564685 198 10 Locked 37.6 454623 105 11 Locked 37.6 349921 36 12 Locked 38.6 227794 9 13 Locked 37.6 228485 11 14 Locked 37.6 241120 40 15 Locked 38.6 60774 7 16 Locked 38.6 46545 9 17 Locked 38.9 35950 5 18 Locked 38.6 36204 3 19 Locked 38.9 26227 1 20 Locked 38.9 19386 0 21 Locked 38.6 15934 0 22 Locked 38.6 13147 1 23 Locked 38.6 12431 0 24 Locked 38.6 8394 0 Upstream bonded channels Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID 1 49600017 43 5120 64 qam 1 2 23600000 43 5120 64 qam 5 3 30100000 41.5 5120 64 qam 4 4 36600000 41.5 5120 64 qam 3 5 43100000 43 5120 64 qam 2 Upstream bonded channels Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts 1 ATDMA 0 0 0 0 2 ATDMA 0 0 1 0 3 ATDMA 0 0 0 0 4 ATDMA 0 0 4 0 5 ATDMA 0 0 3 0124Views0likes0CommentsPacket loss, internet dropping out and thousands of post-RS errors per day
Hiya, I was hoping someone on here could help with this! I'm having realtively frequent issues with my Hub 3 in modem mode - I keep seeing high packet loss or the internet drops out all together for a few seconds from time to time. I have done the oft-quoted steps of "turn off for 5 minutes, check coax connections are all tight and no visible faults in cables, verify post RS error counters have all reset to 0", and I'm still getting issues. I performed all of those steps last night, and at 16:25 today, I now have thousands of post RS errors on some of the downstream channels. (I will attach info below). I'm not really sure what the issue is though, as I'm pretty sure the power levels and SNRs all look okay? I haven't had any noticable issues today (although there was apparently a T3 timeout last night!) so there doesn't seem to be anything unusual in the network logs, although you can see messages from some kind of issue a few days ago. Also, the post RS errors have still been creeping up as usual. In fact, before I restarted the Hub 3 last night there were so many post RS errrors that some kind of integer overflow "wraparound" bug seemed to have occured as I was seeing negative Post RS error counts on some channels! Downstream bonded channels Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID 1 330750000 -1.4 38 256 qam 25 2 138750000 -0.7 36 256 qam 1 3 146750000 -1 36 256 qam 2 4 154750000 -1.2 37 256 qam 3 5 162750000 -1.2 37 256 qam 4 6 170750000 -1.2 37 256 qam 5 7 178750000 -1 37 256 qam 6 8 186750000 -1.2 37 256 qam 7 9 194750000 -1.4 37 256 qam 8 10 202750000 -1.7 37 256 qam 9 11 210750000 -1.9 37 256 qam 10 12 218750000 -2 38 256 qam 11 13 226750000 -2.2 37 256 qam 12 14 234750000 -2.5 37 256 qam 13 15 306750000 -1.9 38 256 qam 22 16 314750000 -1.7 38 256 qam 23 17 322750000 -1.7 38 256 qam 24 18 338750000 -1 37 256 qam 26 19 346750000 -0.9 38 256 qam 27 20 354750000 -0.7 38 256 qam 28 21 362750000 -1 38 256 qam 29 22 370750000 -1.2 38 256 qam 30 23 378750000 -1.9 38 256 qam 31 24 386750000 -2.5 38 256 qam 32 Downstream bonded channels Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors 1 Locked 38.9 2059 0 2 Locked 36.6 478447 3978 3 Locked 36.6 357731 2030 4 Locked 37.6 238340 893 5 Locked 37.3 169213 407 6 Locked 37.6 128992 169 7 Locked 37.3 89022 61 8 Locked 37.3 61090 23 9 Locked 37.9 37901 8 10 Locked 37.6 31118 0 11 Locked 37.6 23685 0 12 Locked 38.6 15405 0 13 Locked 37.6 15447 0 14 Locked 37.6 16134 0 15 Locked 38.6 3845 0 16 Locked 38.6 2929 0 17 Locked 38.6 2246 0 18 Locked 37.6 2389 0 19 Locked 38.6 1654 0 20 Locked 38.6 1216 0 21 Locked 38.6 965 0 22 Locked 38.6 780 0 23 Locked 38.6 773 0 24 Locked 38.9 509 0 Upstream bonded channels Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID 1 49600017 43 5120 64 qam 1 2 23599988 43 5120 64 qam 5 3 30099998 41.5 5120 64 qam 4 4 36599996 41.5 5120 64 qam 3 5 43100007 43 5120 64 qam 2 Upstream bonded channels Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts 1 ATDMA 0 0 0 0 2 ATDMA 0 0 0 0 3 ATDMA 0 0 0 0 4 ATDMA 0 0 0 0 5 ATDMA 0 0 1 0301Views0likes6Comments