Thanks for bringing this to our attention, @Bfeindt. I'm here to help you with this but I'll be needing more details.
Can I know the name of your financial institution or if you receive a specific error message? It's for me to check whether the problem is caused by a connection problem between QuickBooks Online and your bank.
For now, we can perform basic troubleshooting steps that can help us solve the problem. Switching to a different browser or deleting your browsing history to update the network can also help you. For more details, check out these articles: