Galaxy S6 data connection off and on once switching to unlimited plan.
Ok so I was on the family shared data plan 30GB for over a year with this same phone. I got it in May 2015. I never had any unusual data conneciton problems.
Fast forward to about a month or so ago...my father calls At&t and combines our Directv bill with At&T and switches to the family unlimited data plan.
Ever since the plan was changed, my data connection will be completely non-existant for long periods of time, and then suddenly it will come back for a little while. I have the same exact usage patterns I had the previous year. I've even been in the same exact location as my brother, who's also on our plan, but with an Iphone, and he's had perfect reception. It's not a slow connection, it's either a decent speed smooth connection or nothing at all. Many times it will immediately say "no service" when I try to do something and texts will fail to send.
Has anyone heard of this happening? Could it be some sort of phone registration error on At&t's part? Is there anything I could do to figure out if some piece of hardware in the phone suddenly went bad at the exact time our plan was changed?
I've contacted At&t twice through the live chat and they've spent a long time going through their troublshooting lists trying to find the problem...and seem to ignore the fact that I keep telling them the problem started exactly when our plan was changed. The network always turns out to be fine. Then they basically just say it must be my phone that's broken and try to get me to buy a new phone from them on contract.