If,like Leicester, the network has been upgraded to 256 qam fron 64qam, you will probably need to get an ambit 250 modem. All other modems are going down, either no connection, intermittant connection, or slow d/l speeds (in the dial up region,i.e 56k). This is affecting Teryons', Surfboards and ambit 100/120/200s'. 250 swap out cures this. Techs have no means of testing/fixing d/l speeds apart from the obvious as already stated. Hope this helps
