My phone keeps losing the data connection randomly. Its turned on & the data roaming as well.
Even when the connection is turned on it'll drop & won't allow me to send messages, it'll just say "Failed to send message". It won't let me call & Internet doesn't work either. I went to the AT&T store told them what was going on, they said there was nothing wrong with the network. They replaced my SIM card & it was working fine & then it started happening again. I don't know whats wrong with it. Help, its really annoying.
I have the HTC Sensation with at&t 3g bands. I have the same problem. Configured my APN settings differently and data on Speed test works fine. It seems to be AT&T. Their network is overloaded and does not reliably work for either data or for calls. I'm planning to switch once my contract expires.
When you configured the APN settings, did it actually solve your problem?
I looked everywhere online to see if anyone was experiencing the same problem & if anyone knew a solution. I called 611 to see if they could help, but the lady found nothing wrong with their network. /: