I have a VSS1 attached to a BT HH3 that has been working perfectly. However over the past 48 hours it seems to no longer be able to connect to any 3G mobile device despite lights 1, 2 and 4 being lit as they should be (and have been for months). I have tried the reset procedure on the VSS1 (several times) without any improvement. Speed test shows the line as constant as it ever has been at 7,128 Kbps downstream and 384kbps upstream.