Since installing the latest Windows update, it appears windows 10 firewall blocking quickbooks is preventing users from opening the company file in multi-user mode. I'm wondering whether anyone else has experienced this and what fixed it.

I started by reviewing Windows Firewall rules to ensure QuickBooks programs were still allowed through the firewall. I also checked that the required QuickBooks ports remained open because Windows updates sometimes reset firewall permissions. Restarting QuickBooks Database Server Manager and verifying that the server was hosting the company file correctly helped eliminate a few possible causes.

Another suggestion I found was to confirm that every workstation is using the same QuickBooks Desktop version. Version differences can sometimes create unexpected connection issues. Keeping both Windows and QuickBooks fully updated also seems to improve compatibility.

I'd prefer not to disable Windows Firewall unless absolutely necessary, so I'm looking for solutions that maintain system security while restoring QuickBooks connectivity.

If further troubleshooting is required, technical assistance is available at +1-888-440-2022 or 1-800-446-8848.

Has anyone successfully resolved windows 10 firewall blocking quickbooks without reinstalling QuickBooks Desktop?