Quick Guide To Eliminate QuickBooks Error H303

QuickBooks error H303 arises when users attempt to access company files stored on a different computer in a multi-user setup. This error indicates that additional configuration is needed for QuickBooks to establish a proper connection to the server hosting the company file. The primary causes of the H303 error are damaged or missing .ND files, improper hosting settings, firewall restrictions blocking communication, and inactive QuickBooks services like the QBCF Monitor or QuickBooks Database Server Manager. The QBCFMonitorService Not Running on This Computer error may occur when QuickBooks is unable to access the QBCFMonitorService, which is necessary for enabling multi-user mode. Let’s discuss how to eliminate error H303.

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Reasons For QuickBooks Error Code H303

QuickBooks error code H303 can make you unable to use the multi-user mode feature of the software. This error may appear due to these reasons:

1. Firewall configurations can block QuickBooks from accessing the company file over the network. If the firewall is not set up to allow QuickBooks, it can prevent users from connecting in multi-user mode.
2. Hosting settings determine how QuickBooks accesses the company file. If the settings are not configured correctly, it can lead to errors related to file access.

Solutions To Fix QuickBooks Error Code H303

To resolve this error, users can follow several troubleshooting steps, such as verifying hosting settings and adjusting firewall settings to allow QuickBooks access.

Solution 1: Verify Your Hosting Settings

Incorrect hosting settings can give you error H303; therefore, follow the steps below and correct them. Multi-user hosting should only be allowed on the server computer, not on any workstation. 

1. Launch QuickBooks on all servers and workstations.
2. Go to the ‘File’ menu.
3. Select ‘Utilities’.
4. Click ‘Stop Hosting Multi-User Access’.
5. Go back to the ‘File’ menu.
6. Access the ‘Utilities’ section.
7. Click ‘Host Multi-User Access.’ 
8. Restart your system and see if the issue is resolved.

Fix your firewall by following the below steps if correcting hosting settings does not fix the error. 

Solution 2: Fix Your Firewall Settings

You can fix the firewall settings for QuickBooks by adding it to the exception list. Here are the steps. 

• 1. Open the Start menu.
  2. Open the Control Panel. 
  3. Select ‘Firewall Settings’.
  4. Click ‘Allow a program through the firewall.’
  5. Use the ‘Add Programs’ option.

• Add QuickBooks to the exception list. 

• Restart your computer.

Conclusion

By addressing the factors explained in this guide and following the solutions, users can successfully eliminate the QuickBooks error H303 and ensure smooth operation in a multi-user environment.

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