I had the exact same issue for really about two weeks.
The logs look identical to the ones I had and my first post was about it -T3 timeouts every happening every 52 minutes. It was like WAN interface reset, and affected VPNs and gaming. Speaking to first line support won't help as they won't see a fault.
Now which part of the country are you in? I was told that my issue involved was due to the a change on the network causing issues with type of the modem/router I had.
I had a call Friday gone explaining that they hadn't sorted out the network issue, but they were to upgrade the router to the Superhub3 that same day which should sort out the issue. That never materialised and I was going to phone back the guy who phoned me tomorrow.
When I woke up Sat morning though I checked the logs and I had 12 hours of no T3 timeouts. I have now had nearly 36 hours of stability so I'm assume the network issue has been sorted, but I will give it a week or so before confirming.
As per the posts above. I'm not sure of the technical bits....I used to be a Haematologist, and dealt in Blood Analysis.
However...2 weeks or so ago, I upgraded to the Hub-3 200mb/s from the Superhub 100mb/s that I had. Was only costing £2 a month more.
Since I changed, my internet constantly locks up, and I keep having to get kicked out and re-boot the page. 500% frustrating. And...you just can't get anybody to speak to to find out what's going on. If I'm paying £42 a month...I expect it to work. I'm going to re install my old router to see if it makes any difference.
I have been having the exact same problem from the last 3 days as well. when i check logs this is all i get the problem is starting to get irritating now hopefully it will get resolved soon. im on the superhub2 ac