Wierd connection speed issues

I was wondering if anyone has experienced the following problem.

I have 1 BT socket in my home and if I connect just my router it connects at about 4300k which for my area is about right. If I then plug my phone into the same socket (other side of my filter) the connection speed drops to 2900k then if I add my sky plus telephone connection this drops further to 1200k.

All of these speeds are from the Gateway Status screen on the router.

I have tried 3 filters and the speeds are consistent. I have had BT test the line and they say it is fine. They have even checked the internal wiring and said it was the extra socket we had, but this is now completely disconnected and the speeds are exactly the same.

It seems to be that the more I connect to the line the lower speed I get which seems to be a line fault, but if BT come out again and they say it's not they are going to charge me £120!!

Thanks in advance for any help ;o)

Darren Lish (Eclipse Broadband, Neatgear DSL Internet Gateway DG814)

I wonder if the ring wire might be the cause.

http://www.farina1.com/blog/Blog.aspx?blog_id=1&mg_b...

Thanks for the quick reply but our line is just 2 wires all the way through. ;o(

Suggest you take line stats for your standard setup, and also without phones connected. It might shed a little more light. It might be a number of things, such as the filter (seems a little unlikely if on your third) or even a line break / bad connection somewhere.

Does the router resync and come back with a lower speed?

What does the noise margin say?

Yeah, it resyncs at the lower speed when I connect the phone.
I cannot seem to find the noise level, is there some software I can run to get it?
Thanks
Darren

You usually get them from the router but I think your router doesn't give them.

Is it a DECT phone? Some of those can be electrically noisy, as can Sky equipment.

If so then double filtering (using two filters in series to the phone equipment) may improve things.

Just tried it with a double filter and it is the same, but if I plug the broadband into the second filter then the speed improves but only by 200 to 300k.

Does this seem odd?

And yes it is a dect phone.

The other strange thing is that also get noise on the phone line when the router is connected

Cheers

Darren