Had Plusnet for about a year now. No problems. I while ago I used my Xbox 360 for the first time in a while and every time i turn it on the router light turns orange and internet goes off. This has never happened before. I have a 360 and Xbox one and phone connected to the router. I've tried disconnecting everything else but the Xbox 360 but still the same problem. Tried wired connection same problem. In the hub manager there doesent seem to be an ip or Mac conflict and I disabled DHCP but no change. I noticed the last time the hub was updated was August and this could be around the time this started happening. I had no problems playing 360 for the first half of last year and when I turned it on lately I have this problem.
