This mistake can be fixed in a variety of ways. Follow these procedures for the best outcomes or for quick answers, but it is recommended that you do so in the following order:

Examine the network connectivity first.

• Run QuickBooks on all networked systems that are utilized for QuickBooks at first.
• After that, go to the File menu and select Utilities.
• Turn off the hosting after that.
• Now, on the QuickBooks Host Computer, click the Windows start button and type "This PC."
• Double-click the network option in the left windowpane to see if all of the networked devices are visible.
• Then, from the QuickBooks Host/Server PC, ping all of the workstations as needed.
• Ping the QuickBooks Host/Server machine that is displaying the Quickbooks Error Code h202.
• On the Command Prompt, you can now ping tests for commands.
• Press Enter after typing the ping command syntax: ping [computer Name].

Method 2: To fix this mistake, use QuickBooks File Doctor.

Install the most recent version of QuickBooks File Doctor. If it's already installed, ignore it. After the installation, it opens automatically. If not, go to the start menu, open the tool, and select the file doctor icon. It might be useful in resolving Network difficulties.

If that doesn't work, try the other options.

Method 3: Use the Network Diagnostic Tool to find out what's wrong with your network.

First and foremost, download and install the Tool.

Examine the folder where the data is saved, and make a list of the IP addresses as well as the Network Interfaces.

Click on the open ports button in the firewall status column to allow certain ports for QuickBooks. Now check the data file connectivity.

Finally, try to open the data file for the company.

If the error persists, consider adding QuickBooks firewall port exceptions to Windows Firewall and security software to resolve the h202 QuickBooks error.

Information on QuickBooks Firewall Ports

• Firewall ports for QuickBooks 2016 include 8019, 55368-55372, and 56726.
• Firewall ports for QuickBooks are 8019, 55373-55377, and 56727.
• 56728, 55378-55382, 56728, 55378-55382, 56728, 55378-55382, 56728, 56728,
• QuickBooks 2019 doesn't have any fixed features. Ports on the Firewall: The ports quickly refresh when you search the company file in Database Server Manager. If you're still getting H202 issues in QuickBooks, move on to the next step.

If that doesn't work, try the other options.

Method 4: In the Windows Host File, enter the QuickBooks Server Information.

• Look for the Windows host file in the following location: c:\windows\system32\drivers\etc
• Make sure you're just applying to the PCs where you're getting QuickBooks Error number H202.
• Look for the Windows host file at the above place.
• C:\Windows\System32\Drivers\Etc.
• C:\Windows\Syswow64\Drivers\Etc.
• Right-click it and select "Open with" from the drop-down menu, then "Notepad."
• Select the host file from the drop-down menu and then type the server IP Address. Finally, hit the TAB key and type QuickBooks Server Name.

NOTE: Instead of using the space bar to separate the IP address and server name, use the TAB key.

To save all modifications made to the host file, use Ctrl + S together and then quit Notepad.

Method 5: Change the location of the Company file

• To begin, make a new folder to store the company file, and save it to Drive C:.
• Now select the company file and the corresponding.
• From an existing file or folder, create a TLG file.
• Ctrl + C will copy it, and Ctrl + V will paste it into the new business file folder.
• After that, see if you can open the file in multi-user mode.

Method 6: Delete and recreate the.ND file

• To begin, type.ND in the Windows search box and press Enter. Next, right-click on the file in the open window and select Delete.
• If it asks, confirm deletion.
• Start Windows by pressing the Start button.
• After that, go to QuickBooks software and select All Programs.
• After that, choose or click the "QuickBooks Database Server Manager" option.
• Now select "Scan Folder" from the drop-down menu.
• After that, go to the "Add Folder" button and search for the company file folder.
• After that, choose the company file and click the OK button.
• To begin the scanning process, select the scan option.
• When the scan is finished, select the "Close" option.

Method 7: Configure QuickBooks Database Server Manager 

• To begin, hit Windows + R on your keyboard, then type MSC into the search box.
• After that, select the Services option.
• Then, using the drop-down arrow, pick QuickBooksDBxx (xx signifies QuickBooks Version).
• To disable the services, double-click on it and then click on a stop.
• Select Automate as the service start option, followed by Start.
• Finally, try opening QuickBooks and reopening the company file.