That's no good and certainly is not what we want happening to your device.
As for whether it's device or network, we'll want to know a little more! Are there any other T-Mobile customers experiencing similar issues in these areas? Have you reviewed the coverage map to see if it's an are you should be covered? Do you get great coverage anywhere?
Just checking in here to see how things are going. Please let us know if you need any additional assistance.
Hiya, magenta2754368! Just wanted to touch base with you and see how you're doing with this phone. Are you still seeing these error messages? If so, did you have a chance to take a peek at Lauren's reply and give us a few details? We're happy to help if we can! Thank you!