Hi all
Many thanks for your continuing responses, I started two threads in order to avoid confusion.
In answer to your questions:
1. Yes I have taken out the surge protector so it is now NTE with standard faceplate > ADSL Nation XF-1e filter > Their twisted pair RJ-11 cable > router.
2. The ISP have suggested it maybe REIN as they are seeing more errors on the upstream, they did not say categorically that it was REIN, downstream sync seems to keep increasing.
If I can avoid going down the FTTP route I would like to as up to now ADSL has provided me with what I need.
I use an ADSL nation filter as have always found that does improve things (even before I moved to the LLU set up), if I use one of the normal filters provided with a router I get worse sync and throughput, It did cross my mind if one of the caps or resistors in this could be on the way out, held off on spending money in case this proved to be baseless, anyone seen similar issues caused by a faulty filter? (there is no telephone plugged into the line)
All help and advice greatly appreciated.
Virgin (ADSL) => Namesco => Newnet => O2 => Plusnet => Zen => Newnet => Zen => Freeola => Vivaciti (using O2 Wholesale DSL) => Xilo (C&W Wholesale) => Xilo (O2 Wholesale) => Xilo (TT Wholesale due to O2 Wholesale closure)
Router: Billion 7800N
Note: I don't lay turf for anyone. astro or otherwise, all views and opinions expressed are my own based on experience.