Rapid changes in my Dynamic IP Address

Same issue as mentioned above, which just recently started for us, in the Minneapolis area.  The IP address (and frequently the location) changes every few seconds. 

It wasn’t happening a few weeks ago, but it is now, and it is affecting my ability to do certain work from home activities that I need to do.

Does anyone from T-Mobile monitor these channels?  They're in very serious danger of losing a customer who's been reasonably happy until now. I've also advised several others to try out T-Mobile, but that's not something I'd dare do again until this is resolved.