I am a nursing home administrator so I am familiar with your situation. If you or your wife don’t have POA then there isn’t much you can do. MS will recognize her spouse as de facto POA. You need to prepare for the possibility that she will need nursing home care as her disease progresses...
I have T-Mobile and can stream ESPN during a game at DWS. Left CSpire years ago. Coverage and quality wasn’t enough for me. CSpire can’t compete on wireless against the big 4 because they only own spectrum in MS, FL panhandle and parts of Alabama. Their home internet is nice, but fixed wireless...