Why do I keep losing my network?

[AC Question]

I am on my 3rd galaxy s6 active. All three phones worked fine for about the first 2-3 weeks then they start dropping the network and going to the "emergency calls only" option. I can then restart the phone and it works fine for a while. The last two phones was dropping the network about every 12 hours on the minute. This last third phone started this behavior today so I am waiting to see if it's the same 12 hour pattern.

 

[the tall guy]

Hi, have you spoken to your carrier, what are they saying about this issue? where did you get the phone from in the first place?