Hello there, Hampton.
I'll share some troubleshooting steps to fix this error 503 you've encountered when trying to run an update for QuickBooks Desktop (QBDT) on a workstation.
When users access the QuickBooks company file remotely, encounter server overload, or use a corrupted company file, they may encounter Error 503. It can also be due to poor internet connectivity and firewalls.
To troubleshoot this issue, here are the steps to follow:
- Review your internet connectivity.
- Turn off the Firewall or Security Software.
- Restart the QuickBooks servers and workstations.
- Recover and repair your QuickBooks installation.
For detailed ways to overcome QBDT update errors, you can check out this article: Fix QuickBooks Desktop Update Errors.
If you want to update your company file to newer versions of QBDT, this resource can help you further: Update your company files to a new version of QuickBooks Desktop.
You're always welcome to visit here again in the Community space if you need more help updating your QBDT or any QBDT-related tasks. It will be my pleasure. Stay safe always.
