I was first made aware of this over a year ago and at the time logged in to the router (A thomson 585v6) to check sync and it was 3meg so didn't think anything of it.
Recently I had a closer look and discovered it was synced at 500Kbps with a large 16db noise margin!
As the house was old and a lot of very old extensions I set about disconnecting it as most of it was unused.
So now we are left with the drop wire that comes in to the house, a junction box and then a short run to an NTE5 which was put in a few years ago. Bell wire also removed.
Sync then went up to ~2800kbps
Went back next day - back down to 500k, quick check of the logs shows the router re-syced down in steps from around 1am onwards over night.
One other thing I noticed looking at a quick router stats graph is that the snr margine is contantly changing - compared to my short line which is almost always solid on 8.6db. Is this normal for a long line?
30 mins router stat graph:
Current router stats:
System Up Time 02:34:26
Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
WAN PPPoA 176434 132849 0 2328 10436 02:33:47
LAN 10M/100M 1772 0 0 36 0 02:34:23
WLAN 54M 142474 199791 0 11059 2705 02:34:18
ADSL Link Downstream Upstream
Connection Speed 2528 kbps 448 kbps
Line Attenuation 63.5 db 31.5 db
Noise Margin 7.7 db 14.0 db
I've currently got a laptop hanging off the router collecting stats 24/7 to see where the noise events are.
Any thoughts or suggestions as to what to do would be welcome!
edit: forgot to mention that I also changed the router for a DG834GT as I thought the thomson might be unstable.
Edited by huwwatkins (Wed 23-Nov-11 22:55:30)