A friend is having problems with a WAG54GS on Tiscali. It keeps dropping the connection (ie the DSL light goes out) and then struggles to get it back. He's had spells of good connections, but these are few and far between. BT say they've checked the line OK. Everything has filters on it (including the burglar alarm). Don't know what firmware he's on until I go take a look, but can anyone recommend anything? Is this a known fault with this router or firmware?