Dexcom Share App

My wife and I have been using share for several years. Tw-months ago she got an iPhone 13. I have a 7+. There was no issue until 1 Aug . Share would only attach for 5 mins at a time. Went to Dexcom Tech support and they help me reset the app. It worked for awhile. I then UN-installed the app on my wife’s phone and down loaded the app from Apple. And set up up again Still I dropping out with a no internet message. I wondering at this point if I should uninstall the Dexcom