A Comprehensive Guide on Troubleshooting QuickBooks Error H303

Among all other company file issues, QuickBooks error H303 is one of the technical problems that arise when a user makes an attempt to run the data file in the multi-user mode but cannot do so. It receives a trigger message stating, “This company file is on another computer, and QuickBooks needs some help connecting”. Now, the question comes up of how to debug it with proper troubleshooting methods. To answer that question, we have explained all the accurate info about the error in this article, along with two fixing methods.

We understand the hassle you go through while dealing with data file errors like QuickBooks error code H303. If you ever find it challenging to resolve the problem, have a one-to-one consultation with the technical support team at 1.855.738.2784.

Prime Reasons That Trigger the QuickBooks Company File Error Message H303

For gaining info on what causes the issue, go through the pointers that we have explained below-

  1. Have you checked the hosting setup on all the computers as it might give rise to the problem.
  2. The incorrect configuration of the Windows firewall is one of the other reasons for receiving the issue.

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Which are the topmost Ways to Deal With the Data File Error Code H303 in QuickBooks Desktop

Do you want to troubleshoot the error code H303 but cannot find a correct solution? The following mentioned methods will guide you well and help you fix it effectively. Take a look-

SOLUTION 1: Change the Windows Firewall Settings

  1. Go to your desktop’s ‘Start’ button and then type ‘Windows Firewall’ in the search bar.
  2. After the Windows Firewall screen appears, opt for ‘Advanced Settings’.
  3. Next, tap ‘New Rule’ by right-clicking on ‘Inbound Rules’.
  4. In the further step, you must choose ‘Port’ and hit ‘Next’.
  5. Now, select TCP and provide the port number in the ‘Specific Local Ports’ section.
  6. Choose the ‘Next’ button and mark ‘Allow the Connection’.
  7. Again, tap ‘Next’ to select all profiles.
  8. As you click ‘Next,’ create a rule and then name it.
  9. In the last step, hit the ‘Finish’ button.

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SOLUTION 2: Make Modifications in the Multi-User Setup Configuration

  1. Start by going to one of the workstations and opening QuickBooks.
  2. From the ‘File’ menu, move to ‘Utilities’ and then see if the ‘Stop Hosting Multi-User Access’ option is visible or not.
  3. If yes, then click on it.
  4. Next, following these similar instructions, you are required to verify this setup on every other workstation on the same network.
  5. Once you have all the workstations, now it is time to validate the hosting set up in the server computer.
  6. Now, click on the ‘File’ section and place the cursor on ‘Utilities’.
  7. Further, if you find the ‘Host Multi-User Access’ option, opt for it.

The article concludes here. Through this blog, we tried to help you gain some useful details about the QuickBooks error H303. In case you are unable to rectify it even after applying the given solutions, we suggest you connect with one of the pro advisors through our Toll-Free 1.855.738.2784 for effective guidance. Our team members will assist you till you completely remove the issue.

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