My ADSL connection has become very erratic over the past couple of months (I have stored Routerstats output for the last month or so.)
I live some distance from the exchange with an LLU connection and a DG834PN router, showing : Attn Down/Up = 51/27 dB.
The line appears to resynch every hour or two (when I lose connection which is annoying for ADSL radio listening) for much of the time, but occasionally the performance is excellent. For example a week ago it ran all day at 4200/830kb not dropping to about 3000/64kb until the evening.
Currently (an averagely bad day) it is running and resynching every hour or two at around about :
Connect Rate 3424/96kb
Noise margin 8.5/8.0dB
HEC 639/5
ES 25426/0
Severe ES 372/0 ..... measured over WAN uptime (from SF counts) of 27 minutes
Interleave depth is 1/1 but I note that upstream interleaving sometimes switches on briefly when it tries to resynch. Hence I assume that my ISP (T-T) has set interleave to "auto".
When things are bad I notice that picking up the phone (either for outgoing or incoming call) the SNR margin downstream can improve from around 9 to 12dB. But the filter is good (ADSL Nation) and have tried many others.
If I reboot the router, then resynching keeps taking place usually until the upstream rate has sunk to about 96Kb. This happens with relatively little lowering of the downstream rate, and little change to any noise margins. Things stabilise often at around 96Kb upstream.
I have tried all the usual thing such as disconnecting all internal wiring etc etc, and can detect no correlation to any other electrical activity in house or time of day (except things are usually better at w/e). I have an i-Plate on the master socket. Complaining to my ISP has resulted in the line being "reconfigured" but with little noticable improvement.
Does anyone please have any advice about what I should I do
I would probably get more helpful response from another ISP, but that is another matter.
Thanks very much
mje_uk