I got same problem, same area as well. I was told they have high utilisation during peak times and they need to add more servers and migrate us across or something, they said there looking to fix this by Feb next year . I had a right go at them and really angry with their attitude , they just don't care. going to see what other providers can do for me tomorrow.
I have also noticed very slow speeds in the evening, area 31. On Vivid 100 but some days it has been as low as just 3.5Mbs; I was getting a few days stats together when I noticed this thread; moderator, do you think this is acceptable?
I have been having issues ever since I turned the router off and went on holiday for two weeks in early November. On my return I am on 2Mb instead of 50 (or rather 40+).
When I ring 150 they can do something that restores the 40Mb, but it dies again within a hour. On Wednesday the engineer said he needed 24hrs to run more tests and he would call back. Guess what I'm still waiting. There is no issue at my end, no interference, no co channel, in fact its a quiet area. My wifi signal registers 100% at 98% quality and an RSSI of 0. Today all I am getting is DNS look up fails, host disconnects, and constant lock ups. A ping to the DNS server times out. You have serious issues guys and need to sort it out. I can no longer ring 150. Firstly because since I have a logged fault I am auto redirected to the engineers, but some idiot has redirected me to the phone queue, so after waiting 30 minutes they simply hang up on me, and anyway they have now closed the lines and are telling us to contact Virginmedia.com. This is now beyond a joke. Its breach of contract.