QuickBooks Desktop is designed by Intuit to function flawlessly: However, it also gets tangled up in complicated error circumstances at times. This article is going to talk about QuickBooks error H303, which several users have recently reported while turning on the multi-user mode in QuickBooks Desktop. On the computer screen, an error warning abruptly appears, reading, “This company file is on another computer, and QuickBooks needs some help connecting.” There are several reasons that can cause QuickBooks error code H303, which you will get to know reading this article, along with the troubleshooting methods to rectify it.
Struggling with QuickBooks error H303 and want to get over it right now? If yes, don’t hesitate to talk to our QuickBooks professionals at +1-855-856-0042.
What are the reasons that cause QuickBooks error code H303?
QuickBooks error code H303 is often caused when there is one or more than one workstation is set to be the server to host the company file for QuickBooks. Several other reasons can also be behind it, like:
1. The Firewall settings are not letting QuickBooks Desktop connect to the internet.
Recommended to read: QuickBooks crashes when opening company file
What are the troubleshooting methods for QuickBooks Error H303?
Solution 1- Manually review the QuickBooks multi-user hosting settings
1. Run QuickBooks Desktop on your workstation.
2. Go to the File menu instead of opening the company file.
3. Pick the Utilities option given in the drop-down menu.
4. Find the Stop Hosting Multi-User Access option there and then click on it.
5. If there you notice the Host Multi-User Access option, don’t click on it.
6. Follow the above steps on the rest of the workstations.
7. Run QuickBooks Desktop on your server computer.
8. Open the File menu and then select the Utilities option given in the drop-down menu.
9. Find the Host Multi-User Access option there and then click on it.
10. If there you notice the Stop Hosting Multi-User Access option, don’t click on it.
You may also see: QuickBooks Error 15270
Solution 2- Carefully correct the Firewall security settings for QuickBooks
1. Go to the Windows Start menu.
2. Type “Windows Firewall” into the search field. Then open Windows Firewall.
3. Pick the Advanced Settings option on the left sidebar.
4. Click right on the Inbound Rules option and then select New Rule from the set of options.
5. Select the Port option and hit the Next button after that.
6. Make certain to select the TCP option.
7. In the Specific local ports space, enter the port number as per the version year of your QuickBooks Desktop.
8. Hit the Next button after that.
9. From the set of options, select Allow the Connection and then hit the Next button.
10. If prompted, ensure all profiles are selected. Hit the Next button.
11. Make a new rule and name it in a way like “QBPorts(Year).”
12. Click on the Finish button after that.
13. Repeat the steps given above to create outbound rules. Follow all the same steps, except pick Outbound Rules instead of Inbound Rules.
A short guide you might like: QBCFmonitorservice not running on this computer
Conclusion
If you fail to rectify QuickBooks error H303 after following the troubleshooting solutions explained above, then the QuickBooks Database Server Manager is possibly not running on the server computer. Hence, we recommend you start QuickBooks Database Server Manager from QuickBooks Tool Hub. You can also get additional assistance to resolve QuickBooks error code H303 by speaking with our QuickBooks officials at +1-855-856-0042.
