on 25-01-2022 17:15
Any suggestions what might be limiting the speed?
Tried the obvious wired/wireless, rebooted hub 3 (more than once)
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 | 138750000 | 1.2 | 37 | 256 qam | 1 |
2 | 146750000 | 1.2 | 38 | 256 qam | 2 |
3 | 154750000 | 1 | 37 | 256 qam | 3 |
4 | 162750000 | 0.7 | 37 | 256 qam | 4 |
5 | 170750000 | 0.5 | 37 | 256 qam | 5 |
6 | 178750000 | 0.4 | 37 | 256 qam | 6 |
7 | 186750000 | 0.2 | 37 | 256 qam | 7 |
8 | 194750000 | 0.2 | 37 | 256 qam | 8 |
9 | 202750000 | 0.4 | 38 | 256 qam | 9 |
10 | 210750000 | 0.5 | 37 | 256 qam | 10 |
11 | 218750000 | 0.9 | 37 | 256 qam | 11 |
12 | 226750000 | 1.2 | 37 | 256 qam | 12 |
13 | 234750000 | 1 | 38 | 256 qam | 13 |
14 | 242750000 | 0.9 | 38 | 256 qam | 14 |
15 | 250750000 | 0.7 | 38 | 256 qam | 15 |
16 | 258750000 | 0.2 | 38 | 256 qam | 16 |
17 | 266750000 | 0 | 38 | 256 qam | 17 |
18 | 274750000 | -0.2 | 38 | 256 qam | 18 |
19 | 282750000 | -0.2 | 38 | 256 qam | 19 |
20 | 290750000 | -0.2 | 37 | 256 qam | 20 |
21 | 298750000 | 0 | 37 | 256 qam | 21 |
22 | 306750000 | 0.2 | 38 | 256 qam | 22 |
23 | 314750000 | 0.5 | 38 | 256 qam | 23 |
24 | 322750000 | 0.7 | 38 | 256 qam | 24 |
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 | Locked | 37.6 | 45 | 0 |
2 | Locked | 38.6 | 30 | 0 |
3 | Locked | 37.6 | 33 | 0 |
4 | Locked | 37.6 | 51 | 0 |
5 | Locked | 37.6 | 140 | 0 |
6 | Locked | 37.6 | 152 | 0 |
7 | Locked | 37.6 | 272 | 0 |
8 | Locked | 37.6 | 214 | 0 |
9 | Locked | 38.6 | 43 | 0 |
10 | Locked | 37.6 | 40 | 0 |
11 | Locked | 37.6 | 59 | 0 |
12 | Locked | 37.6 | 133 | 0 |
13 | Locked | 38.6 | 33 | 0 |
14 | Locked | 38.6 | 36 | 0 |
15 | Locked | 38.6 | 26 | 0 |
16 | Locked | 38.6 | 18 | 0 |
17 | Locked | 38.6 | 24 | 0 |
18 | Locked | 38.6 | 16 | 0 |
19 | Locked | 38.6 | 21 | 0 |
20 | Locked | 37.6 | 50 | 0 |
21 | Locked | 37.6 | 43 | 0 |
22 | Locked | 38.6 | 24 | 0 |
23 | Locked | 38.6 | 15 | 0 |
24 | Locked | 38.9 | 15 | 0 |
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 | 53699932 | 41.3 | 5120 | 32 qam | 6 |
2 | 39400000 | 41 | 5120 | 32 qam | 8 |
3 | 46200000 | 41.3 | 5120 | 32 qam | 7 |
4 | 60300220 | 41.3 | 5120 | 32 qam | 5 |
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 | ATDMA | 0 | 0 | 2 | 0 |
2 | ATDMA | 0 | 0 | 1 | 0 |
3 | ATDMA | 0 | 0 | 0 | 0 |
4 | ATDMA | 0 | 0 | 0 | 0 |
Network Log
Time Priority Description
25/01/2022 13:28:51 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/01/2022 03:54:2 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/01/2022 19:32:34 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:39 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/01/2022 17:21:55 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/01/2022 12:39:18 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/01/2022 20:57:52 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2022 21:03:4 Warning! LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2022 20:57:53 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2022 20:57:30 Warning! LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2022 20:47:36 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:34 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2022 20:40:11 notice Unit has been restored to factory defaults from a software issued command;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2022 20:39:3 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2022 20:38:49 Warning! LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2022 12:22:59 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2022 12:22:51 Warning! LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:38 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2022 08:00:7 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2022 07:59:55 Warning! LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
Answered! Go to Answer
on 10-02-2022 15:55
Thanks for responding to my private message. I'm glad we could arrange a technician visit for you to get these connection issues resolved.
Please do pop back and keep us updated on how it goes!
Best wishes,
Serena
25-01-2022 21:31 - edited 25-01-2022 21:32
Looks like you have some noise on the line as your upstream channels are out of spec on QAM (Should be 64)
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 | 53699932 | 41.3 | 5120 | 32 qam | 6 |
2 | 39400000 | 41 | 5120 | 32 qam | 8 |
3 | 46200000 | 41.3 | 5120 | 32 qam | 7 |
4 | 60300220 | 41.3 | 5120 | 32 qam | 5 |
on 26-01-2022 16:58
Thanks Carl. I've been checking it through the day and it has been a little faster at times but the QAM seems to vary between 32 to 64.
on 02-02-2022 08:57
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 | 53700000 | 41.5 | 5120 | 32 qam | 6 |
2 | 39400000 | 41.3 | 5120 | 64 qam | 8 |
3 | 46200000 | 41.3 | 5120 | 32 qam | 7 |
4 | 60300000 | 41.5 | 5120 | 32 qam | 5 |
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 | ATDMA | 0 | 0 | 3 | 0 |
2 | ATDMA | 0 | 0 | 0 | 0 |
3 | ATDMA | 0 | 0 | 1 | 0 |
4 | ATDMA | 0 | 0 | 1 | 0 |
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 | 138750000 | 1.2 | 37 | 256 qam | 1 |
2 | 146750000 | 1.2 | 37 | 256 qam | 2 |
3 | 154750000 | 1 | 37 | 256 qam | 3 |
4 | 162750000 | 0.5 | 37 | 256 qam | 4 |
5 | 170750000 | 0.5 | 37 | 256 qam | 5 |
6 | 178750000 | 0.4 | 37 | 256 qam | 6 |
7 | 186750000 | 0 | 37 | 256 qam | 7 |
8 | 194750000 | 0.2 | 37 | 256 qam | 8 |
9 | 202750000 | 0.4 | 37 | 256 qam | 9 |
10 | 210750000 | 0.5 | 37 | 256 qam | 10 |
11 | 218750000 | 0.9 | 37 | 256 qam | 11 |
12 | 226750000 | 1 | 37 | 256 qam | 12 |
13 | 234750000 | 1 | 37 | 256 qam | 13 |
14 | 242750000 | 0.7 | 37 | 256 qam | 14 |
15 | 250750000 | 0.7 | 38 | 256 qam | 15 |
16 | 258750000 | 0.2 | 38 | 256 qam | 16 |
17 | 266750000 | 0 | 38 | 256 qam | 17 |
18 | 274750000 | -0.2 | 38 | 256 qam | 18 |
19 | 282750000 | 0 | 38 | 256 qam | 19 |
20 | 290750000 | 0 | 37 | 256 qam | 20 |
21 | 298750000 | 0 | 37 | 256 qam | 21 |
22 | 306750000 | 0.2 | 38 | 256 qam | 22 |
23 | 314750000 | 0.5 | 38 | 256 qam | 23 |
24 | 322750000 | 0.7 | 38 | 256 qam | 24 |
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 | Locked | 37.3 | 189 | 0 |
2 | Locked | 37.3 | 122 | 0 |
3 | Locked | 37.3 | 150 | 0 |
4 | Locked | 37.3 | 136 | 0 |
5 | Locked | 37.6 | 303 | 0 |
6 | Locked | 37.6 | 363 | 0 |
7 | Locked | 37.3 | 1021 | 0 |
8 | Locked | 37.6 | 642 | 0 |
9 | Locked | 37.6 | 138 | 0 |
10 | Locked | 37.6 | 108 | 0 |
11 | Locked | 37.6 | 130 | 0 |
12 | Locked | 37.6 | 313 | 0 |
13 | Locked | 37.6 | 91 | 0 |
14 | Locked | 37.6 | 94 | 0 |
15 | Locked | 38.6 | 80 | 0 |
16 | Locked | 38.2 | 119 | 0 |
17 | Locked | 38.6 | 87 | 0 |
18 | Locked | 38.6 | 94 | 0 |
19 | Locked | 38.6 | 88 | 0 |
20 | Locked | 37.6 | 200 | 0 |
21 | Locked | 37.6 | 192 | 0 |
22 | Locked | 38.6 | 122 | 0 |
23 | Locked | 38.6 | 76 | 0 |
24 | Locked | 38.6 | 100 | 0 |
on 05-02-2022 10:53
Hi @CaptainMustard,
Thank you for your posts and welcome to our community forums. We're here to help.
I'm really sorry to hear you're facing some connection speed issues lately. If they're ongoing for you today, can you confirm what model of router you have along with what diagnostics and troubleshooting you've performed thus far?
Thanks,
on 05-02-2022 11:48
Hi Zach,
Thanks!
It's a Hub 3.
I've rebooted the hub several times and done a couple of factory resets with no significant change.
I've been doing speed tests via the router both wired and wireless. The wired tests are using a couple of different laptops and different cables all with at least cat 6 and gigabit nics. The wireless tests via a Galaxy S10 are often slightly better but the wired connections never get much above 300Mbps.
I've rechecked the cables and everything seems ok except for a kink in the cable right next to the white box (the one that terminates the cable as it enters the house). This is on the start of cable that goes from the white box to the splitter and on to the hub. It's been like that since install - they didn't leave enough space next to the unused BT box really. Don't know if this is a factor.
I've set up a BB monitor below.
https://www.thinkbroadband.com/broadband/monitoring/quality/share/8ba32ed22ee57c598560772c995e6bc282c74553
Recent hub stats below, there seems quite a few Downstream Post RS errors!
Time Priority Description
03/02/2022 08:29:34 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
03/02/2022 02:25:2 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
03/02/2022 02:00:51 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
02/02/2022 12:43:6 | notice | LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
02/02/2022 12:42:50 | Warning! | LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
02/02/2022 12:42:21 | notice | LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
01/01/1970 00:01:39 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
02/02/2022 12:34:38 | notice | LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
02/02/2022 12:33:35 | Warning! | LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 | 53700132 | 41.8 | 5120 | 64 qam | 6 |
2 | 39400161 | 41.3 | 5120 | 64 qam | 8 |
3 | 46200153 | 41.3 | 5120 | 64 qam | 7 |
4 | 60300000 | 42 | 5120 | 64 qam | 5 |
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 | ATDMA | 0 | 0 | 3 | 0 |
2 | ATDMA | 0 | 0 | 1 | 0 |
3 | ATDMA | 0 | 0 | 1 | 0 |
4 | ATDMA | 0 | 0 | 0 | 0 |
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 | 138750000 | 1.5 | 37 | 256 qam | 1 |
2 | 146750000 | 1.5 | 37 | 256 qam | 2 |
3 | 154750000 | 1.2 | 37 | 256 qam | 3 |
4 | 162750000 | 1 | 37 | 256 qam | 4 |
5 | 170750000 | 1 | 37 | 256 qam | 5 |
6 | 178750000 | 0.7 | 37 | 256 qam | 6 |
7 | 186750000 | 0.5 | 36 | 256 qam | 7 |
8 | 194750000 | 0.5 | 37 | 256 qam | 8 |
9 | 202750000 | 0.7 | 37 | 256 qam | 9 |
10 | 210750000 | 0.9 | 37 | 256 qam | 10 |
11 | 218750000 | 1.2 | 37 | 256 qam | 11 |
12 | 226750000 | 1.5 | 37 | 256 qam | 12 |
13 | 234750000 | 1.2 | 37 | 256 qam | 13 |
14 | 242750000 | 1.2 | 37 | 256 qam | 14 |
15 | 250750000 | 1 | 37 | 256 qam | 15 |
16 | 258750000 | 0.7 | 38 | 256 qam | 16 |
17 | 266750000 | 0.4 | 38 | 256 qam | 17 |
18 | 274750000 | 0.2 | 37 | 256 qam | 18 |
19 | 282750000 | 0.2 | 38 | 256 qam | 19 |
20 | 290750000 | 0.2 | 37 | 256 qam | 20 |
21 | 298750000 | 0.5 | 37 | 256 qam | 21 |
22 | 306750000 | 0.5 | 37 | 256 qam | 22 |
23 | 314750000 | 0.9 | 38 | 256 qam | 23 |
24 | 322750000 | 1.2 | 38 | 256 qam | 24 |
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 | Locked | 37 | 1584 | 5984 |
2 | Locked | 37.6 | 1229 | 6302 |
3 | Locked | 37.3 | 1470 | 4970 |
4 | Locked | 37 | 2172 | 4367 |
5 | Locked | 37 | 1279 | 5501 |
6 | Locked | 37 | 1895 | 4387 |
7 | Locked | 36.8 | 2020 | 4690 |
8 | Locked | 37 | 1582 | 12694 |
9 | Locked | 37.9 | 2097 | 3511 |
10 | Locked | 37.6 | 1093 | 6331 |
11 | Locked | 37.6 | 1947 | 4086 |
12 | Locked | 37.6 | 1069 | 6431 |
13 | Locked | 37.9 | 1333 | 4608 |
14 | Locked | 37.9 | 1469 | 3899 |
15 | Locked | 37.9 | 761 | 5680 |
16 | Locked | 38.2 | 1211 | 4558 |
17 | Locked | 38.2 | 1119 | 5248 |
18 | Locked | 37.9 | 1095 | 4429 |
19 | Locked | 38.2 | 1238 | 4621 |
20 | Locked | 37.9 | 894 | 10280 |
21 | Locked | 37.9 | 1494 | 5354 |
22 | Locked | 37.9 | 1592 | 4111 |
23 | Locked | 38.2 | 818 | 4364 |
24 | Locked | 38.2 | 1097 | 4601 |
on 05-02-2022 13:56
You should have zero PostRS errors. This needs fixed by a VM technician. You can check for loose connections in the meantime, as these can cause noise ingress on the line.
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on 07-02-2022 14:26
Thank you for getting back to us and sharing your Hub stats. I'm sorry to see the Post RS errors on your account. I would like to book a technician appointment for you to get this fixed. I shall send you a private message now to obatin the details required and confirm your address.
Please look out for the purple envelope in the top right corner and get back to me when you can 🙂
Best wishes,
Serena
on 08-02-2022 12:14
Thanks, Replied
on 10-02-2022 15:55
Thanks for responding to my private message. I'm glad we could arrange a technician visit for you to get these connection issues resolved.
Please do pop back and keep us updated on how it goes!
Best wishes,
Serena