Just tested it, no noise through the test socket with my phone. Tried my router through the test socket and the problem remains

In reply to a post by vulco:

Just tested it, no noise through the test socket with my phone. Tried my router through the test socket and the problem remains

OK, so it's something to do with the ADSL side at your end, but you are on your third router.

Have they all been the same router? If so have you used one of the new power supplies or are you still using the original?

Have you tried a different filter into the test socket and a different power supply?

Is the router power supply lying on the ADSL cable or the cable to the phone?

Anything like that that could screw up the cleanliness of any cable.

Tried D-link, Netgear and Belkin routers. Tried different filters and the power supply isn't on the cables.

Hmm my fuse box is underneath my master socket, could that interfere?

Edited by vulco (Thu 12-Mar-09 17:30:30)

Don't know about the fuse box - if there was something dodgy in there causing an imperfect contact then I expect it could. Where's the actual meter?

I had a later thought as well, the ADSL cable from the router to the filter, have you replaced that? Cables can get damaged or a plug on the end get dodgy. In the days of Centronics printer cables that was a frequent cause of gibberish printing.

The meter is about 6 meters from the master socket.

Had a new cable delivered yesterday, didn't help.

Update.

Line noise is intermittent now.
All internal wiring has been replaced, problem remains and the external wiring is fine according to BT

Did you previously have broadband from somebody else?. Was it fixed rate or max? Was it stable?
When you joined PlusNet what sort of speed were you lead to believe you could have; 6K or better?

Are you able to get the noise, power, anntenuation and SNR (noise margin) figures for the upstream and downstrem channels from any one of the three routers and post them here?

Enceladus

Had virgin up to 8mb, wasn't stable and very slow.

First 6 months with plusnet we had a stable 6.4mb.


Downstream Upstream

Data rate(Kbps)
1952Kb 448Kb

Noise Margin
28 16

Output power(dBm)
123 192

Attenuation(dB)
29 17

I assume the data rates you quote are actually your sync rates. If so your downstream rate is WAY too low for the line conditions. With those figures you should be syncing at 8Mbs so that is something that needs to be investigated.

I know he said he was with Virgin but does he have Sky on his line without a splitter?

It sounds like there is something that is causing feedback .. a voltage thing.