Well this is obviously NOT a bank side problem.  What are the chances that TD, BMO, and now RBC too, all having sync issues with QBO at exactly the same time?  I mean they all failed to sync on 11/4/22.  If it happened to only one bank I can understand that it is likely a bank side issue, but to have it happen to all banks at the same time and suggest that it's not a QBO issue is simply an insincere response.  Moreover, it does not appear to be an isolated problem.  

And yes, multiple sign-in and manual update were attempted but all failed with error 105.