on 05-07-2021 19:14
Hello,
My Google Nest Wifi Router crashes every few days as it is loosing its IP address to my Hub 3 (Modem Mode). I've completely replaced my Google Router with a new unit and the problem returned within a week. This leads me to believe that there is an issue with the Virgin Media Hub.
I've attached the output of my tabs as a reference for diagnosis.
This has been going on for months so I'm losing patience.
Thanks
on 05-07-2021 19:22
on 05-07-2021 19:32
05-07-2021 19:36 - edited 05-07-2021 19:37
To prove its the hub or VM network you need to connect a PC to the hub in modem mode to see how stable that is.
Then to test the Google Router and see whats going on for its WAN you need a switch VLAN two ports between the hub and router and then mirror the port to a USB to Ethernet with Wireshark running this filter:
port 67 or port 68 or arp
or try another router make
05-07-2021 23:02 - edited 05-07-2021 23:05
Thanks.
I did the Hub 3 reset and it reset all postRS values to 0, so I'll wait to see long it takes them to degrade.
An interesting note, all the channels are at 64 qam except the first one, which is 32 qam. What does that indicate? indicate?
Let's see what happens.
Chris
on 07-07-2021 23:15
Ok.
It's been 48 hours since I've rebooted the Hub 3 and I can see the degraded performance already on Channel 1:
- Upstream modulation dropped from 64 qam to 32 qam
- Downstream PostRS errors in 10's of thousands
- Two Sync Timing / MDD Lost incidents in the logs
Suspect I need an Engineer out to tune it as I can't be restarting my Hub every few days.
Thoughts?
on 08-07-2021 06:46
on 08-07-2021 09:57
Hi chrisforlano,
Thanks for getting in touch, and a very warm welcome to the Community Forum. I'm sorry that you're having some problems with your broadband connection.
I'd be happy to look into this further for you. I'll just need to confirm a few details via Private Message. Please look out for a purple envelope in the top right corner of your screen.
Kind regards,
Laurie
on 08-07-2021 10:32
Yup,
Thats noise ingress.
Your upstream is still the wrong modulation because of the noise.
You should have no post rs errors on a connecting thats working well.
It could be as simple as the coax cable snapping or a corroded splitter/connector somewhere along the line.
Either way you need an engineer to investigate and find the source.
on 07-08-2021 20:48
Laurie,
It's been nearly a month since the engineering came by to try to improve the noise on my line, but it does not seem to have improved the situation. I am still getting Tens of Thousands of PostRS Errors and T3 time outs (see attached).
Can we get an engineer to take another look or arrange for a more modern router?
Thanks,
Chris