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Hello there, AWS_EM.
The error 105 indicates that there may be a problem on your financial institution's end. This error can stop the online bank connection to QuickBooks.
This error usually resolves within 24 hours.
In the meantime, we'll have to update your bank's connection manually. You can do that by going to the Banking tab and then selecting Banking. Then, click Update.
Afterward, you're good to categorize and reconcile the transactions.
I'm just a post-away if there's anything that I can help in categorizing the transactions. Have a good one!