I am not able to connect to Prosperity Bank after they updated their website, any solutions?

Thanks for reaching out to the Community, @ambientairhvac. I'm here to lend a hand with the bank connection.

To ensure that I provide you the best information, could you please let me know if you're receiving an error message? In the meantime, I'm including an article with steps for troubleshooting bank connection issues: What to do if bank transactions won’t download or there's a bank error.

I'll be keeping an eye out for your response and look forward to getting this resolved for you. Take care. 

Yes receiving messages from Quickbooks. I tried to attach them, maybe (1030

Thanks for the screenshot, @ambientairhvac.

The banking error 103 that you've receive means that your banking credentials in QuickBooks are incorrect. I can show you how to fix this error.

If you're using an existing connection and the error appears. Then, let's make sure that your browser does not auto-fill your credentials if you have recently changed your bank sign-in information.

1. Go to the Banking menu and select Banking.
2. Locate the card for the account that generated error 103.
3. Click the Edit icon. 
4. Select Edit sign-in info.
5. Click Update after you enter your new credentials.

However, if the error appears when you're newly connecting to your bank or if the bank requires you to turn on the third party-apps connection, then you can refer to this article for further steps: Fix banking error 103.

I'll be waiting for your response and looking forward to fix this banking error 103.