Hi all

Like a lot of other iPhone 3G owners, I am suffering from the loss of internet tethering after upgrading to OS 4.2.1:

http://discussions.apple.com/thread.jspa?threadID=2657841&start=0&tstart=0

I'm using Telecom XT prepaid. Funnily enough, while currently in Australia tethering works fine using a SIM for Telstra's Next G network, so I'm assuming it's something to do with the carrier settings? I don't have any "profiles" to delete which is one of the suggested fixes.

 At the moment I'm planning on rolling back to 4.1 which would be a drag... If anyone has any advice on this issue or has solved it I'd love to know!

Cheers