ATT data connection has gone south.
Yesterday I received an iMessage four hours after it was sent, making me suspicious something was afoot.
Today, I found out my cellular data connection was completely useless despite reception (field test confirms signal is fine, I haven't gone to a new location) and LTE (or 3G or "4G") connectivity. I'm on a Mobile Share plan.
Safari would occasionally redirect to an ATT site and display
"AT&T Free Message: Your attempt to connect to data service was unsuccessful. Please try again later."
But more often than not it'll just timeout.
Wi-Fi works fine.
I've done everything I could think of and scoured the net with both Google and Bing. (airplane mode toggling, SIM removal, reboots, network resets, etc.) - short of erasing the phone but I fear its 100% an AT&T problem that I can do nothing about.
I've looked over various forums but I'm hoping there is something I missed that I could do.
I have a friend with an ATT 5s like me and it doesn't exhibit this behavior so it doesn't appear location based.