QuickBooks® Error Code H202

Learn what Error H202 and H505 are and what to do if you see them in QuickBooks Desktop. If you see Error H202 or H505 (or H101 and H103) when you try to switch to multi-user mode, we're here to help. These errors mean something is blocking the multi-user connection to your server.
How do I fix error codes in QuickBooks?
Error code description, causes, solutions?
Close your QuickBooks.
Download our QuickBooks Tool Hub.
Open the file you downloaded (QuickBooksToolHub.exe).
Follow the on-screen steps to install.
When the install finishes, open the tool hub on your Windows desktop.
Select Program Problems.
Click Quick Fix my Program.