27/06/2025 às 21:54 QuickBooks Error

Call +1-800-223-1608 | QuickBooks Error H303 Stopping Your Multi-User Access

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Are you trying to open a QuickBooks company file in multi-user mode but seeing QuickBooks Error H303? Don’t worry—this is a common issue, and you’re just one call away from resolving it. Dial +1-800-223-1608 now for real-time help from QuickBooks-certified experts!

✅ What is QuickBooks Error H303?

QuickBooks Error H303 occurs when the QuickBooks Desktop software installed on your workstation can’t reach the company file hosted on another computer (the server). It's part of the H-series errors and generally relates to issues in the multi-user configuration.

The message typically reads:

“Error Code: H303 – This company file is located on another computer, and QuickBooks needs help connecting.”

If you're running into this error, it means your QuickBooks is having trouble accessing the company file across your network. Call +1-800-223-1608 to get back in multi-user mode fast!

❗Why Does Error H303 in QuickBooks Desktop Happen?

Below are the most common reasons for H303 Error QuickBooks:

QuickBooks Database Server Manager not running on the server
Firewall or antivirus blocking network access
Hosting settings misconfigured on the local or host machine
Damaged or incorrect .ND file (Network Data file)
Incorrect IP address or DNS configuration
Company file folder lacks proper Windows permissions

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🔧 How to Fix QuickBooks Error H303 – Step-by-Step Solutions

✅ Solution 1: Use QuickBooks Tool Hub to Fix Network Issues

Download and install the latest QuickBooks Tool Hub from Intuit’s official website.
Open the tool and select Network Issues.
Click QuickBooks Database Server Manager.
Scan the folder containing your company file.

Once the scan is complete, retry opening the file. If this doesn't work, move on or call +1-800-223-1608.

✅ Solution 2: Ensure Hosting Settings Are Proper

On the workstation (NOT the server):

Open QuickBooks.
Go to File > Utilities.
If you see Stop Hosting Multi-User Access, select it.
Restart QuickBooks.

On the server:

Make sure Hosting Multi-User Access is enabled.

Misconfigured settings are a leading cause of QuickBooks multi-user mode error H303. For remote help, dial +1-800-223-1608.

✅ Solution 3: Rename .ND and .TLG Files

Close QuickBooks.
Go to the folder where your company file is stored.
Locate files with the same name as your company file, but with extensions .ND and .TLG.
Example:

companyfile.qbw.nd
companyfile.qbw.tlg

Rename them to .old (e.g., companyfile.qbw.nd.old).
Restart QuickBooks and try to open the file.

These files are re-created automatically when you rescan with QuickBooks Database Server Manager. If you're stuck, call +1-800-223-1608.

✅ Solution 4: Configure Firewall and Antivirus

Make sure QuickBooks has the correct permissions:

Open Control Panel > Windows Defender Firewall.
Click Allow an app or feature through Windows Firewall.
Add the following QuickBooks ports:

QB 2024: 8019, 56728, 55378-55382
QB 2023: 8019, 56727, 55373-55377

Save and restart your PC.

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✅ Solution 5: Ping the Server from Workstation

Open Command Prompt.
Type ping [server-name] and press Enter.
If you don’t get replies, there’s a network issue.

Ensure all systems are connected to the same network and workgroup. Not confident doing this alone? Call +1-800-223-1608.

📞Don’t Let Error H303 Slow You Down – Call +1-800-223-1608 Now!

Multi-user issues in QuickBooks can bring your accounting to a halt. If you’ve tried these solutions and still face the QuickBooks Error H303, don’t wait. Our dedicated QuickBooks support team is available 24/7 at +1-800-223-1608 to help you fix it immediately.

🧠 Frequently Asked Questions (FAQs)

Q1. What is Error H303 in QuickBooks Desktop?

Answer: It’s a multi-user mode error that occurs when a workstation can’t connect to the server hosting the company file.

Q2. How can I fix QuickBooks Error H303?

Answer: Fix hosting settings, configure firewall, rename network files, and use QuickBooks Database Server Manager. Or, call +1-800-223-1608 for expert support.

Q3. Can antivirus software cause H303?

Answer: Yes, antivirus or firewall can block QuickBooks’s ability to connect to the server, triggering H303.

Q4. Will QuickBooks Tool Hub fix H303?

Answer: Yes, in many cases. Use the “Network Issues” tab in Tool Hub to scan and resolve access errors.

Q5. Do I need admin rights to fix Error H303?

Answer: Yes. Certain steps require administrator privileges to change hosting or network settings.

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Whether you're managing a small office or a full accounting department, QuickBooks must run smoothly in multi-user mode. QuickBooks Error H303 prevents that—but not for long when you call +1-800-223-1608. We’ll resolve the issue swiftly so your team can get back to work.