Anonymous - Message Not Found, Transient Download Failure, etc
I recently ported my number from Sprint to AT&T and purchased a new HTC One. I'm currently extremely disappointed and frustrated with the MMS services. About half of my MMS messages never download, I hit the download button over and over but they never come through, occasionally they error out with 'Transient Download Failure'. Additionally, about 5 times a day I lose text messages to the 'Anonymous' thread, Message not found error. I've lost picture messages from my fiance, who is on the same network and the same room to this thread.
I am an avid group messager with my family and I'm missing out on half of the conversation... I expected that switching from Sprint to AT&T would be an improvment in the MMS and coverage experience, but that's currently not seeming to be the case.
Does anyone know how to fix this? I'm trying to plan a wedding and it's extremely frustrating when I lose half of my conversation.