So since the weekend (possibly Friday) we've had terrible upload speeds on our M500 connection. Various speed tests have given between 340 and 450 Mbps down, which is fine obviously. But Upload speeds are hovering around 0.1 Mbps sometimes as high as 0.4, which is not fine. Especially as its meant to be around 36.
It's a wired connection, tried restarting everything etc. So all the usual boxes are ticked. HUB3 which is in modem mode.
It is also having intermittent DNS probe errors popping up and just weird failures when loading stuff, which I've not been able to work out if they're handshake issues or some post loading thing on various pages where it uploads requests and they fail or if its the DNS. I can probably switch to OpenDNS or Google DNS to eliminate that issue though.
Also as a side note. The automated help systems and bots on the main website are utterly useless. They offer advice on moving the HUB around to improve Wifi, after having been told its a wired connection. Then it asks about the light colours on the HUB3 and does not include the magenta light for Modem mode, which then just loops you back to the beginning unable to add any proper description of the actual issue. Very frustrating.
You've got noise on the upstream. Check all the connectors are tight and then wait for someone from VM to confirm whether this is an area fault or whether they are going to book an engineer. If it's an area fault it could take months to resolve, VM do not do anything quickly.
Edit: If you have neighbours on VM that are also showing 16QAM on the upstream channels then it's likely an area fault.
Ah thanks for confirming! Sadly I tightened everything and reset everything several times before even contacting VM, none of the automated website stuff would admit any fault in the area or with my connection nor did the reply to the complaint I sent them.
So we'll see. Thanks though. Good to get someone technical take a look.
Interestingly before I switched back from Linux for work when I tried pinging google several times I was getting between 10-15% packet loss which probably explains everything misbehaving.
No need to pinhole reset the hub, the issue got fixed yesterday as I looked at the status and someone's complaining (not mine as I was told it was fine even though it wasn't) got them to fix the issue. Back to 500Mbs (sometimes 400) down and 37Mbps up.
500Mbps has been reduced to 100Mbps down which I'm unhappy about but its functional. However the upload speed has again dropped to 0.1-0.5Mbps making most usage on the net basically unusable. Checked again and there's similar amounts of noise on the upstream channels.
There's no easy way to just register the fact anywhere. The service status checker claims everything is fine. Then
If you click wired it takes you to a trouble shooter for wifi. Is it actually trying to actively make people angry? Then that (https://www.virginmedia.com/help/virgin-media-slow-wifi-connection) asks the colour of the light on the HUB3 but doesn't include the modem mode one. Then proceeds to try and make you move wifi devices about when I said they're wired.