I was a happy customer of O2 LLU from late 2009 until recently. Speeds are pretty good, but there have been more outages, and much longer ones, than I ever had with BT (via A&A) - a total of 5 outages since August, ranging from 1 to 12 hours long, compared to one outage a year in 2009, 2010 and 2011. There were two outages yesterday, and another one last Friday.
The outage symptoms are always the same, with DSL connectivity maintained (checked with router) but IP connectivity lost to the O2 first hop router. O2 have confirmed the outages each time but don't provide any confidence they are able to fix the underlying issue. O2 say this is "an exchange problem" and imply that it's a BT issue, but are vague as to what's going on.
I noticed that cafes on the same exchange still had WiFi working during the most recent outages, presumably over DSL - one of them was outside the cable area so it was definitely DSL. So it's likely that non-O2 DSL providers aren't affected by this.
Does anyone know if switching to another LLU option in Frome would help, or going back to a BT based service? Having these outages is worse than slow broadband, though I would like to keep similar speeds (about 3.5 to 4 Mbps on a 5km line).
I can't get FTTC yet and many not get it, as I'm in a smallish village a bit outside Frome, though there is an RFS date of Mar 2012. FTTC may perhaps may be less reliable initially so it's not a priority.
Any recommendations on a reliable DSL provider, preferably LLU? Particularly interested to hear from people on this exchange.
Exchange info (SSFRO): http://www.samknows.com/broadband/exchange/SSFRO