Thanks for coming to the Community today. I'll be glad to help ensure your bank feeds are updated so you can file your BAS.
First off, make sure that your bank doesn't have system maintenance that may have caused a connection interruption. I'd suggest logging in to your bank's website to see if there's an alert or notification.
If everything is good, we can also manually update it in QuickBooks. Here's how:
If it's still not updating, can you specify the name of the bank so I can check our records if we have received any reported issues with your bank? Any additional details you can share are highly appreciated.