@V3G
SO u say that in alot of cases it can be hardware related(the 619)
I got 619 error the whole day y-day, and could not connect to wap on phone either. Where is the hardware error there(3diff phones)
I'm saying it can be anything in the path and the fact that a reboot often 'cures' the 619 indicates an instability on the client side and it's Worth it to try and stabilise.
But it can be as easily caused by something on the network as I posted above.
You will have a feel if you have a general client-side or network-side problem.
We've seen posts from forumites that they must reboot many times a day, this clearly indicates a client-side issue.
Other seem to be more stable, so they can be 90% sure a 619 is on the network side.
But in all cases, a methodical and logical fault finding process helps.
Did you report the problem yesterday? Remember a mail to the Call Desk can also work.