QuickBooks Error H303 typically occurs when the company file requires additional configuration. This error can prevent access to your company file. Here’s how to fix it:
Check Hosting Settings: On the server, open QuickBooks and go to 'File' > 'Utilities'. Ensure that 'Host Multi-User Access' is enabled. On all workstations, 'Host Multi-User Access' should be disabled.
Use QuickBooks Database Server Manager: Download and install the QuickBooks Tool Hub. Open it, go to the 'Network Issues' tab, and select 'QuickBooks Database Server Manager'. Scan your company file location. This tool will configure your firewall settings.
Configure Firewall Settings: Ensure that your firewall is not blocking QuickBooks files. Open the Control Panel, go to 'System and Security' > 'Windows Defender Firewall' > 'Advanced Settings'. Create inbound and outbound rules for the ports QuickBooks uses (typically 8019, 56728, 55378-55382).
Check QuickBooks Services: Ensure QuickBooksDBXX and QBCFMonitorService are running. Press 'Windows + R', type 'services.msc', and press 'Enter'. Locate these services, ensure they are set to 'Automatic', and start them if they are not running.
Reboot Your System: Restart your server and workstations to apply the changes.
Seek Professional Help: If the error persists, contact QuickBooks expert support at +1-800-845-9666 for personalized assistance.
By following these steps, you can effectively resolve QuickBooks Error H303 and ensure smooth multi-user access to your company file.
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