Can't go online after DLC install

Downloaded & installed the DLC. Trying to access the game, & I can not go online to play. I get a Network Error. My home network is A-OK with all computers plus the Xbox One X online. There are no issues with any other game. Anyone else experiencing this issue?

Try a full power reset to clear any stale cached data. You may also want to check whether there are any pending system updates.

I finally got online. The DLC & patched had been applied when the fault began. I tried hard resets with clearing the cache three times. I finally uninstalled the entire game & resintalled everything including the patches. I did one final reset with cache clearing & that worked. What a buggy mess this game is! We shouldn’t have to jump through hoops like this on a AAA title. :man_facepalming: