A family of Microsoft relational database management systems designed for ease of use.
Firstly, these are peer to peer forums and Microsoft does not necessarily actively participate, and even rarer is it when someone from the Access Dev Team is here. So don't could on such content/support. If you want answers, call support and open tickets. Use the application feedback button. Remember, the squeaky wheel gets the grease!
The answer right now is rollback and wait. Could be days, weeks, months, years, ... it may never get fixed. Who knows at this point in time. We're already 22 days into this mess and we've haven't heard anything about addressing these networking issues with the official 'fix' and I learnt a long time ago not to count of Microsoft! Fix it yourself by rolling back the update and move on, be done with it. Better that than wasting more time on the issue and having employees unable to work.