I'd like to know if it is possible to configure my 2830n such that when the ADSL2+ line goes down it connects to the Vodafone mobile WiFi Access Point I have. Basically the 2820 would have to connect over local WiFi to the mobile access point which would have connected to Vodafone mobile internet service. I can't see a way of doing it but just in case there is I'd be interested in knowing how. I don't want to buy a (Vodafone) USB mobile access device to plug into the 2820, I want to know if I can have essentially the same 'type' of connection using the kit I have, if not so be it.