About a week ago, my rock solid 12Mbps/1Mbps NDSL connection goes down. Gale force wind and rain at the time could have started the problem although we get plenty of that in Welly.

After that frequent disconnections (not only PPP but DSL) and variable sync speeds generally down to 2Mbps/0.5Mps. Some days cannot connect at all (windy days it seems but not sure about that), other (calm days) connect variably.

Slingshot tried interleaving on the line to no avail... connection seems more stable the last couple days (no wind... coincidence?) but still at ridiculously low sync speeds.

Tried my backup modem, same problems, troubleshooting using different cables and connection points throughout the house, no joy. Slingshot sends out a contractor who refers only to DSL led on modem... no POTS testing, noise, attenuation ... and puts a new cable from house to street after he discovers a bit of a swinging cable. Don't even think he bothered to check the outdoor connection box for leaks, just lays his cable. Connection still syncing at 2Mps but the DSL led is on and he says he doesn't know anything about sync speeds.

Now:

Statistics                 Downstream/Upstream
Line Rate                 2286 Kbps / 509 Kbps
Attainable Line Rate  3440 Kbps / 446 Kbps
Noise Margin             12.3 dB 10.2 dB
Line Attenuation        24.5 dB / 30.0 dB
Output Power            17.9 dBm / 12.6 dBm

What next? Would another interleaving session sort out the line rate if the street wiring was the problem(doesn't make sense but...)? Is there any way of bypassing the internal wiring for a test .... trying out a makeshift ADSL splitter or something?
(is there an illustrated guide for that somewhere?)

Thanks in advance for the geekish wisdom.


p.s. the first time i got NDSL installed at a property a guy was sent out to do something, i think to the splitter. At this place where i moved in 9 months ago, they didn't send anyone out to the house. Policy change?