Can you tell more specific about this?Hardware: I have connected the phone jack (on the wall) with the DSL port on the modem.In the GUI:I have logged into the GUI of the Telstra modem with 192.168.0.1 with default credential information.Then, inside of Broadband tab, I have set the username and password of accXXXXXX as mentioned but the modem still show no connnection and switch to backup mode and connect to the internet through mobile sim.