Fix QuickBooks Error H101 | Multi-User Mode Network Issue

Oct 14, 2025 |
Admin |
Estimated Read Time : 5 MIN

QuickBooks Error H101 indicates that QuickBooks is unable to access the company file in multi-user mode due to a network issue. QuickBooks refuses to risk your data when the host and network rules are not properly aligned. The QuickBooks errors are typically easy to resolve in the early stages, but they may require more advanced diagnosis.

This guide provides solutions that have worked for millions of users to fix such errors. Error resolution depends on your system and the QuickBooks version you are using. Not only this, but errors sometimes require QuickBooks experts to fix them.

Many users opt to call a QuickBooks expert to finish the job without risking their company file or any data damage.

To fix QuickBooks Error H101, you have two options:

Choose Standard Solutions if:

You should have a verified backup from the last 24 hours.
You are able to configure Windows firewall settings as per the requirements of the hosting mode.
You have enough time to try all the solutions in this guide.

Choose Call a QuickBooks Expert if:

If you are totally new to QuickBooks and hesitate to make any changes.
No fresh backup or multi-user on a shared server with live work.
You have already tried 2-3 steps, and the error still persists.
If you do not want to lose any of your QuickBooks data.

Why does the Error H101 happen?

Incorrect hosting settings.
Windows Firewall Restrictions
Network Issue
Damaged .nd file
Services not running

Before you start

Back up your company file.
Close all apps, sign in as Windows Admin.
Your system must have QuickBooks Tool Hub installed.
Ensure to run QuickBooks as an admin.

What not to do while fixing error H101 in QuickBooks?

Do not enable multi-user access on workstations except the server.
Do not try to open the company file on a workstation that is experiencing an error.
Do not ignore the workstation that has the option of Host Multi-user Access.
Do not assume the server is set up correctly without confirming.

Learn How To Fix QuickBooks Error H101.

Using the QuickBooks tool Hub, run the QuickBooks Database Server Manager on your server.

Solution 1: Use the QuickBooks Tool and its feature

Step 1: On Your Server, download and install the QuickBooks tool hub.

The QuickBooks tool hub is used to fix common errors before you use it; close the QuickBooks program. We recommend using the QB tool hub on Windows 10, 64-bit.

Exit QuickBooks.
Now, download the QuickBooks Tool Hub’s latest version.

Save the downloaded file that must be reachable.
Open the downloaded file QuickBoosToolHub.exe.
You need to follow the on-screen instructions to install it.
Agree to the terms and conditions.
After you finish the installation, double-click on the QuickBooks icon on your Windows desktop.

Step 2: Run QuickBooks Database Server Manager on your server using QuickBooks Tool Hub.

For your information, the server computer is the one where the company file has been restored. At the same time, your other computers are considered workstations that are just connected to your network.

Within the QuickBooks Tool Hub Window, click on Network Issues.
Click on QuickBooks Database Server Manager.

If you do not have QuickBooks on your server, install it.
If you have company file folder(s), click on Start scan inside the QuickBooks Database Server Manager.
In case you do not have the company file folders, you need to browse to the location where the company file is saved. Then, click on Start Scan.
Automatically, QuickBooks Database Server Manager starts repairing the Windows firewall.
After the scan is finished, click on Close.
Now, launch QuickBooks on each workstation to resolve the error H101.
Select file.
Click on Switch to Multi-user Mode.

Step 3: In the QuickBooks Tool Hub, run the file Doctor.

Click on Company File Issues.
Choose Run QuickBooks File Doctor.

From the drop-down menu, click on your Company file.
If you do not get the file, use Browse and search for the file.
Click on Check your file and Network.
Hit Continue and enter your QB admin password.
Finally, click Next.

Confirm the resolution of the QuickBooks Error H101. If each workstation is able to switch to multi-user mode without any issue, it means the error is resolved.
If the error H101 is not fixed, try solution 2.

Fix QuickBooks Error Desktop H101 Manually

Solution 2: Check the Service on your Server.

Ensure QuickBooks services are operational on your hosting station.

Click on the Windows Start menu
In the Search box, enter Run and press Enter.
Find QuickBooks Database Server Manager XX and double-click on it.

Note: XX is the version of your QuickBooks plus 10, for example, QuickBooks 2024 is QuickBooksDB34.

Click on Automatic.
Ensure that either Running or Started is the service status.
In case you find neither, click on Start.

Choose the Recovery tab.
Click on Restart the Service from the following drop-down menus:
- First Failure
- Second Failure
- Subsequent Failures

Now, hit Apply and click on OK.
Finally, the changes you made are saved.
You need to repeat the same steps for QBCFMonitorService.

After you have finished the above steps, launch QuickBooks on all workstations.

Go to the File.
Click on Switch to Multi-user mode.

If there is no issue in the functioning of QuickBooks, it means the H101 QuickBooks Error is fixed. In the other case, if the error still survives, proceed with solution 3.

Solution 3: Configure Your Windows Firewall Settings

Ensure that the server computer lets QuickBooks through your Windows firewall.

Using QuickBooks Tool Hub, Run the QuickBooks File Doctor.
Click on Company File Issues.
Now, click on Run QuickBooks File Doctor.
Within the QuickBooks File Doctor, from the drop-down menu, choose your company file.
In case you do not find any file, use the Browse and Search option to fetch your file.
Click on Check your file and network.
Click on Continue and enter your QB’s admin password.
Finally, click on Next.

Note:- The scanning time of your file depends on your file size. It may take up to five minutes. Launch the QuickBooks application and open your company file once the scan is finished.

If everything is working without any problem, it means the error is fixed, and now, you can proceed with your office work. In case the error is not resolved, head towards solution 4.

Learn More – QuickBooks Error H505

Solution 4: From your workstation, ping a server

Open the QuickBooks application on any of your workstations.
As of now, do not open your company file.
Click on File and choose Utilities.
There may be an option for Host Multi-user Access; do not click on it.
Simply, move to the other workstation because this workstation is not causing the Error H101.
If there is an option Stop Hosting Multi-user Access, click on it.

Apply these steps to the workstations facing the error.

Once you have checked your workstations, move to the server computer. We would like to inform you that the server computer is the one that hosts your company’s files.

Open QuickBooks on the server computer.
Click on File and select Utilities.
If you find the Host Multi-user Access option, click on it.
If you only have Stop Hosting Multi-user Access, then do not click on it.

Solution 5: Save the Company file to a new location

There is a chance that any corrupt file path may also cause the H101 error in QuickBooks. In this solution, we will move the company file to a new location.

Close the QuickBooks program.
Now, on the desktop, create a New Folder.
Copy to the company file and paste it in the new folder with the extension .QBW.
Launch QuickBooks.
Go to the file and click on Open or Restore a Company.

Browse to the new folder.
Open the QuickBooks application.

Now, confirm whether the error is fixed or not. If QuickBooks operates on all the workstations and you are able to access the company file, the issue is fixed. If not, it is time to contact a QuickBooks expert +1(866)500-0076.

Bonus Tips to Avoid QuickBooks Error H101

Use the latest version of QuickBooks Desktop.
The server computer should be the only system with active Host Multi-user Access.
Ensure to run the QuickBooks Tool Hub regularly.
Always configure firewall settings as per the requirements of the host’s multi-user mode.
Make sure you have a stable internet connection to operate QuickBooks in multi-user mode.

Conclusion

So far, no solution has worked? Do not worry. Sometimes, QuickBooks errors require advanced solutions from QuickBooks experts. There are multiple reasons, depending on your computer, system requirements, and QuickBooks version, that the error is not fixed by these solutions.

Your 2 hours of headache can become a 10-minute solution. Talk to a senior QuickBooks Specialist +1(866)500-0076 and fix your error within a limited time frame. If you prefer a callback, you can share your number and error code – QuickBooks Error H101 in the form within this page.

Frequently Asked Questions

What is QuickBooks Error H101?

QuickBooks error H101 is a network error when QuickBooks fails to access the company file.

Is it safe to fix the QuickBooks error H101 by myself?

Yes, it is safe, but we recommend having the latest backups of your data. However, if the error requires advanced diagnosis, then you should contact a senior QuickBooks expert at +1(866)500-0076.

Why am I facing the QuickBooks error H101?

There are various reasons behind the QB error H101, including network issues, hosting multi-user access not aligned, or a damaged data file.

What to do if my error is still not fixed after trying all the solutions?

If you have tried all the solutions and the error is still not fixed, contact a QuickBooks specialist at +1(866)500-0076.

Fix QuickBooks Error H101 in Multi-User Mode