Someone changed something in exchange! Without telling me that I should change encapsulation to PPPoE and multiplexing to LLC in my router
I dont know whether to laugh or cry either. That solution is so simple and its something that the Tiscali reps should be advising as a matter of course... This has been well known and documented for years.
The cause - the line has suddenly been LLU'd.
BTw dsalms are configured to accept either LLC-Based or VC-Mux, whilst the Tiscali MSANs will only accept VC-Mux.
The PPPoE bit is irrelevant.
It should be PPPoA for tiscali too, as the back link from the exchange is still ATM. Setting it at PPPoE will only cause the MSAN to emulate PPPoE (PPPoEoA) which will cause additional overheads, and actually slow down the throughput speed.
AFAIK in the UK, theres only Be/O2 LLU where it should be set anything other than PPPoA.