How to Fix QuickBooks Error H101, H202, H303, or H505?

QuickBooks Error H101, H202, H303, or H505 usually occurs when the QuickBooks software is unable to establish a connection with the server. This error can prevent users from accessing their company files and can lead to a significant loss of productivity. Here are some steps you can follow to fix these errors:

Verify the hosting settings

• Open QuickBooks on all workstations and select File > Utilities.
• Make sure that the option "Host Multi-User Access" is not selected on any workstation. If it is, select it to turn it off.

Check the network connectivity

• Verify that all workstations are connected to the same network.
• Ping the server computer from each workstation to verify network connectivity.
• Ensure that the server computer's firewall settings are not blocking QuickBooks.

Add QuickBooks exceptions to Windows Firewall

• Open Control Panel and select Windows Firewall.
• Select Allow an app or feature through Windows Firewall.
• Select the QuickBooks version installed on the server computer.
• Make sure that both Private and Public boxes are checked.
• Click OK.

Create a new folder for the company file

• Create a new folder on the server computer and share it.
• Copy the company file (.qbw) to the new folder.
• Open QuickBooks on each workstation and select Open or Restore Company File.
• Select Open a company file and browse to the new folder.

Use the QuickBooks File Doctor tool

• Download and install the QuickBooks File Doctor tool from the official Intuit website.
• Run the tool and select the appropriate error.
• Follow the on-screen instructions to fix the error.

If none of the above steps work, you may need to contact QuickBooks support for further assistance.