This really reminds me of my old line at my old property.
Interestingly o2 provided Technicolor Speedtouch routers.
I was using a DG834G router many years ago, constant drop outs. I tried Belkin routers, other Netgear routers, a sky router, all dropping out (probably had over 10 routers). Then a speedtouch 585 would hold onto the connection for weeks without an issue.
At the time Sky sent multiple engineers and eventually held their hands up and let me leave. It seems they will not send out a REIN engineer, probably due to cost. When it got this far they let me leave and wouldn't send out a REIN engineer.
The non speedtouch routers were not faulty, in fact they worked on my 2nd line flawlessly for weeks on end. The issue WAS my line, it is just the speedtouch router somehow masked my issues.
What I find interesting is o2 customers are going from a Speedtouch based router, which I believe was a speedtouch 585 rebranded in some cases and onto a bog standard router. I can personally vouch for the 585 somehow masking REIN issues.
My experience here really proved to me that hardware can easily mask issues and just because one router works doesn't mean the other one is faulty.
I think I did eventually locate the source of my issues. A neighbour was building a plane in his garage, he had significant welding tools and all kinds of machinery. I realised this around 1 year after my issues and I correlated the drop outs with him being in that garage. So afterall it wasn't a faulty router, just an oblivious neighbour who of course had virginmedia and had no idea his garage being virtually next to the BT telegraph pole was causing issues.
I am now back on Sky broadband and also have BT, no issues but in a different property.

Using a homehub 4 and a Sky Hub which are both flawless for me.
Edited by ukhardy07 (Thu 11-Sep-14 00:44:59)