flixide, We're on the cable network Unlimited Ultra Fast Cable 130/10 and we use cabled, WiFi G and N (2.4 and 5 GHz) connections and we've not yet had the problems you have at the same time. The first thing I'd want to know is which part of your cabled setup has the problem. I wouldn't look at Wifi until the cabled network works as it is supposed to.

I'd want to know if it is the router or the cable modem/cable network. I would remove the router and connect one cabled PC. If it doesn't work OK with one PC then I'd contact Vodafone and they can troubleshoot the cable network and cable modem. I'd also try another PC to check that the first PC doesn't have a unique problem. If it works OK for one cabled PC than I'd reconnect the router and see what happens with the same PC connected to the router. If there are still problems then I'd borrow another router and see if that fixes the problems.

For the first year of many, we may not be experiencing the usual season of increased lag, increased disconnections from services like XBox Live, and slower downloads. I asked my kids and they say the only problem they are having is with League of Legends and that appears to relate to the latest patch for that game. The recent upgrades to the cable network are likely to be the reason why we aren't noticing any differences. Those old issues used to get worse as more and more students finished their studies and ensconced themselves with their computers for the holiday season. It usually got worse as each day progressed. Early morning was usually no problem - I guess the students were still in bed. It was no major bother for browsing but it was very annoying for gaming on international hosts. If this was a source of at least part of your issues then I would expect us to be impacted at least a little because we use the same Vodafone infrastructure and we don't seem to be.