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How to Fix QuickBooks Error H202?

Solution 1:
Use the QuickBooks File Doctor Tool

Run QuickBooks File Doctor Tool to resolve network issues that might be blocking multi-user connection to the server.

If the QuickBooks error H202 still persists, try the next solution.

Solution 2: 
Configure your Firewall Settings for QuickBooks Desktop

Make sure that the server computer firewall settings isnt blocking QuickBooks. Read the post Configure Firewall and Internet security settings for QuickBooks Desktop for detailed instructions on adding QuickBooks ports exception on the firewall.

Once youve set the firewall permissions, try opening QuickBooks on your workstation in multi-user mode. If the problem persists, check out the next solution.

Solution 3:
Make Sure the QuickBooks Services are Running

Ensure that the QuickBooks services are running on the server computer. Follow the below-listed steps to check if the QuickbooksDBXX services are running, and then repeat them for QBCFMonitorService.

• Type Run into the Windows search bar.
• In Run window, type services.msc, and then hit Enter.
• In Services window, browse and double-click QuickBooksDBXX on the list.

Greetings,
jimmy Wick