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Number of issues with Hub 4

Every day or so my speeds will drop from about 200Mb/20Mb to about 70Mb/20Mb and get stuck. The only way I have found to fix this is to reboot the Hub.

I also have an issue where the admin page becomes inaccessible while in modem mode, as it is currently. I can fix this temporarily by factory resetting the Hub, performing the initial setup and then re-activating modem mode. I can then access the admin page at 192.168.100.1. Eventually this will stop working and attempting to access the admin page will return a "connection has timed out" error in the browser. This happens on both Wi-Fi and Ethernet and even sequential rebooting does not fix it.

Another issue I am having is what can best be described as sporadic bursts of micro-disconnections. The connection will disconnect for less than a second and immediately reconnect and then repeat for a while. This doesn't seem to have any adverse affect on real-time applications such as games (the game does not disconnect when the connection "drops"). This is still not intended behaviour though and is incredibly annoying. I have created a BQM which shows these disconnections as tiny amounts of packet loss (less than 1%).

I will factory reset the Hub if it is absolutely necessary in order to post the power stats etc., but it's quite inconvenient to do so.

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Message 2 of 7
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Re: Number of issues with Hub 4

As you are on the 200 service - how did you get the Hub4 - was it a new install or offered as an "improvement" over your previous Hub? If so, what was that Hub model and were you having problems with it? If not - do you still have it?

--------------------
John
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My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
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Message 3 of 7
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Re: Number of issues with Hub 4

Yeah, it's the 200 service. The Hub 4 is an "improvement" on my Hub 2ac, which did not have any of these issues. The Hub 2ac has been deactivated.

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Re: Number of issues with Hub 4

3.0 Downstream channels
ChannelChannel Frequency (Hz)Power (dBmV)SNR (dB)ModulationChannel ID
25330750000-0.50000038.605377QAM25625
9202750000-1.70000138.983261QAM2569
10210750000-1.70000138.605377QAM25610
11218750000-1.50000038.983261QAM25611
12226750000-1.40000238.605377QAM25612
13234750000-1.40000238.605377QAM25613
14242750000-1.29999938.983261QAM25614
15250750000-1.20000138.983261QAM25615
16258750000-1.00000038.983261QAM25616
17266750000-0.90000238.605377QAM25617
18274750000-0.40000238.983261QAM25618
19282750000-0.70000138.983261QAM25619
20290750000-0.79999938.605377QAM25620
21298750000-1.09999838.605377QAM25621
22306750000-1.20000138.983261QAM25622
23314750000-1.29999938.983261QAM25623
24322750000-0.90000238.983261QAM25624
26370750000-0.79999938.605377QAM25626
27378750000-0.70000138.605377QAM25627
28386750000-0.79999938.605377QAM25628
29394750000-0.90000238.605377QAM25629
30402750000-0.40000238.983261QAM25630
314107500000.00000038.983261QAM25631
324187500000.20000138.605377QAM25632
33426750000-0.20000138.605377QAM25633
34434750000-0.20000138.983261QAM25634
354427500000.00000038.605377QAM25635
364507500000.59999838.605377QAM25636
374587500000.70000138.983261QAM25637
384667500000.59999838.605377QAM25638
394747500000.40000238.605377QAM25639


3.0 Downstream channels
ChannelLock StatusRxMER (dB)Pre RS ErrorsPost RS Errors
25Locked050
9Locked30627110
10Locked30913110
11Locked23375300
12Locked24114500
13Locked31885400
14Locked31279400
15Locked5955100
16Locked4730100
17Locked5523410
18Locked6138410
19Locked5937710
20Locked5650100
21Locked6290930
22Locked5829430
23Locked6530940
24Locked6905950
26Locked6754460
27Locked5646170
28Locked5422260
29Locked70574120
30Locked76694210
31Locked71841160
32Locked71831170
33Locked67514150
34Locked73644220
35Locked79466360
36Locked71841270
37Locked88984420
38Locked67494400
39Locked16130606390


3.1 Downstream channels
ChannelChannel Width (MHz)FFT TypeNumber of Active SubcarriersModulation (Active Profile)First Active Subcarrier (Hz)
159964K1880QAM4096759


3.1 Downstream channels
Channel IDLock StatusRxMER Data (db)PLC Power (dBmV)Correcteds (Active Profile)Uncorrectables (Active Profile)
159Locked 0.716606340
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Re: Number of issues with Hub 4

3.0 Upstream channels

ChannelFrequency (Hz)Power (dBmV)Symbol Rate (ksps)ModulationChannel ID
13940000048.5205995120 KSym/sec64QAM4
23260000048.7705995120 KSym/sec64QAM5
34620000048.2705995120 KSym/sec64QAM3
45370000048.2705995120 KSym/sec64QAM2



3.0 Upstream channels

ChannelChannel TypeT1 TimeoutsT2 TimeoutsT3 TimeoutsT4 Timeouts
1US_TYPE_STDMA0010
2US_TYPE_STDMA0010
3US_TYPE_STDMA0010
4US_TYPE_STDMA0010
 
 
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Message 6 of 7
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Re: Number of issues with Hub 4

Network Log

TimePriorityDescription
Thu 01/01/1970 00:01:253No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 19/11/2020 01:50:455MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
 
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Message 7 of 7
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Re: Number of issues with Hub 4

Factory resetting the Hub gave me a new IP address, so I have created a new BQM.

Here is a snapshot of the last day on the old IP address.

Here is a live graph of the new BQM.

Disregard this, putting the Hub back into modem mode gave me the old IP back, my mistake.
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