Try a quiet line test 17070 option 2, any noise report as a line fault.
Have you ever actually reported a fault on the line?
To make sure you have eliminated any problems with your internal wiring, connect to the test socket behind the removable faceplate of the master socket with a new filter and see if there is any improvement.
Which one of these matches your master phone socket?
or or or
Do you have any extension wiring, as that can cause problems with disconnections?
Please connect things up as shown below, and see if the disconnections stop. This diagram also applies to BT Infinity/
There could be an intermittent fault on the external network.
Next time you get a disconnection, and it does not re-connect, check your phone line again for dial tone and any noise.
Also try the test socket, as sometimes the front plate makes bad contact with the test socket due to oxidisation.
thanks keith ill try it out when the internet disconnects again,
just got home from work and im connected but only getting 7mbs .. normally at 70mbps+
i have the internet plugged into the test socket at the minuite. done a quick quiet line test and found no static or any noises that would be of concern.