Further examination shows I have 2 NTE5 main sockets (removable front lower half), one in the hall and the other in the study. Maybe when the study extension was put in it became the new main socket. ...
Thanks, I'll try monitoring router stats. I have an NTE5 main socket but when BT installed first an ISDN line, then broadband to the study extension they wired it directly into the back of the socket, ...
I've had the same problem with speed reduction. Last week BT speedtester came up with:
Download speedachieved during the test was - 113 Kbps
For your connection, the acceptable range of speeds is 5 ...