DId you get this resolved? I just hopped off the servers on US East and West and no issues…
I know it sounds like a broken record but… Restart your router and leave it unplugged for 30 seconds, then replug it back in and start it up. Restart your Xbox/PC and then relaunch.
Maybe even try switching the servers in the MSFS settings. Click on profile on top right of screen: Profile - Select Servers Select a desired server and then change back. 