Things like filters do degrade over time, affecting both the speed and reliability of your connection. I was sceptical until a colleague at work lent me a 'good' filter to try.
I spent £20 on a filtered faceplate for my master socket (less than 5 mins to fit) and a better modem cable, and the service has been transformed. I can't remember the last time we lost the connection - previously it was dropping half a dozen times a day.
See this thread for more details
http://www.mbclub.co.uk/forums/pc-i-t-support-advice-posts/105815-increase-your-broadband-speed.html
I spent £20 on a filtered faceplate for my master socket (less than 5 mins to fit) and a better modem cable, and the service has been transformed. I can't remember the last time we lost the connection - previously it was dropping half a dozen times a day.
See this thread for more details
http://www.mbclub.co.uk/forums/pc-i-t-support-advice-posts/105815-increase-your-broadband-speed.html