Complete Troubleshooting Guide for QuickBooks Error Code H505
- Steven Burns
- Sep 1
- 4 min read
QuickBooks is one of the most reliable accounting solutions used by businesses worldwide, but sometimes users encounter QuickBooks Error Code H505 (1-855-510-6475) when switching to multi-user mode. This issue indicates that the computer hosting the company file needs additional configuration. In this detailed guide, we will provide comprehensive troubleshooting methods to help you fix QuickBooks Error Code H505 (1-855-510-6475) step by step.
What is QuickBooks Error Code H505?
QuickBooks Error Code H505 (1-855-510-6475) appears when a user attempts to access a company file located on another computer, but the software cannot establish a proper connection to the server. This error is part of the H-series errors, which typically indicate hosting configuration issues. To run QuickBooks in a multi-user environment smoothly, resolving QuickBooks Error Code H505 (1-855-510-6475) is critical.
Causes of QuickBooks Error Code H505
Several factors can lead to QuickBooks Error Code H505 (1-855-510-6475), including:
Incorrect hosting configuration on the server.
Damaged or misconfigured DNS settings.
QuickBooks Database Server Manager not running.
Blocked communication due to firewall restrictions.
Damaged or corrupted .ND (Network Data) files.
By identifying the cause, you can choose the right troubleshooting approach to fix QuickBooks Error Code H505 (1-855-510-6475) quickly.
Symptoms of QuickBooks Error Code H505
If you are dealing with QuickBooks Error Code H505 (1-855-510-6475), you may notice the following symptoms:
The company file cannot be opened in multi-user mode.
The computer hosting the file is not properly configured.
QuickBooks stops responding or freezes frequently.
Error messages appear when switching to multi-user mode.
The network connection seems unstable.
Recognizing these symptoms ensures you confirm that the problem is indeed QuickBooks Error Code H505 (1-855-510-6475).
Step-by-Step Solutions to Fix QuickBooks Error Code H505
Below are tested methods to resolve QuickBooks Error Code H505 (1-855-510-6475) in a structured troubleshooting format.
Step 1: Verify Hosting Settings
Open QuickBooks on each workstation and press F2 to open the Product Information window.
Check that only the server is set to host the company file.
On workstations, ensure the hosting option is turned off.
On the server, the hosting option should be set to on.
Correcting these settings can often resolve QuickBooks Error Code H505 (1-855-510-6475) immediately.
Step 2: Configure Firewall Settings
Open Windows Firewall and go to Advanced Settings.
Create inbound and outbound rules allowing QuickBooks to communicate.
Make sure ports 8019, 56728, 55378-55382 are open.
Restart the computer after applying the rules.
Configuring the firewall ensures that QuickBooks can communicate properly, which may fix QuickBooks Error Code H505 (1-855-510-6475).
Step 3: Use QuickBooks Database Server Manager
Download and install QuickBooks Tool Hub if not already installed.
From Tool Hub, launch QuickBooks Database Server Manager.
Scan the folder where the company file is located.
Once completed, restart the Database Server Manager service.
Running this scan often repairs corrupted .ND files and resolves QuickBooks Error Code H505 (1-855-510-6475).
Step 4: Edit the Host File
Locate the host file on the system (C:\Windows\System32\Drivers\Etc\).
Add the server IP address and computer name.
Save changes and restart the system.
This manual method ensures correct communication between workstations and the server, fixing QuickBooks Error Code H505 (1-855-510-6475).
Step 5: Restart QuickBooks Services
On the server computer, open the Run window and type services.msc.
Locate QuickBooksDBXX and QBCFMonitorService.
Ensure both are running and set to Automatic.
Restart the services if necessary.
If these services are not running, QuickBooks cannot host files properly, causing QuickBooks Error Code H505 (1-855-510-6475).
Step 6: Rename .ND and .TLG Files
Open the folder where the company file is stored.
Locate files with extensions .ND and .TLG.
Right-click and rename them by adding .old at the end.
Reopen QuickBooks and rescan the folder using Database Server Manager.
Renaming these files often clears corruption and fixes QuickBooks Error Code H505 (1-855-510-6475).
Step 7: Create a New Company File Folder
Create a new folder on the server computer.
Move the company file to this new folder.
Adjust folder permissions to allow access to all users.
Reopen the company file in multi-user mode.
This simple method often resolves QuickBooks Error Code H505 (1-855-510-6475) when other steps fail.
Step 8: Check DNS Settings
Open Command Prompt and type ipconfig /all.
Verify the server IP address and workstation IP address.
Ensure both systems can ping each other.
Update DNS settings if necessary.
Correct DNS resolution is essential to eliminate QuickBooks Error Code H505 (1-855-510-6475).
Preventing QuickBooks Error Code H505
To avoid dealing with QuickBooks Error Code H505 (1-855-510-6475) in the future, follow these preventive tips:
Regularly update QuickBooks to the latest version.
Keep firewall and antivirus settings updated for QuickBooks communication.
Ensure Database Server Manager is always running on the server.
Maintain stable internet and network connections.
Train staff to avoid changing hosting settings unnecessarily.
When to Contact Support
If you have followed all troubleshooting steps and still face QuickBooks Error Code H505 (1-855-510-6475), it may require advanced technical assistance. You can contact certified QuickBooks support experts at 1-855-510-6475 to receive specialized guidance tailored to your setup.
Final Thoughts
Dealing with QuickBooks Error Code H505 (1-855-510-6475) can be frustrating, especially when it disrupts multi-user operations. However, by following this structured troubleshooting guide—checking hosting settings, configuring firewall rules, using QuickBooks Database Server Manager, and verifying DNS—you can resolve the issue effectively. For persistent cases, do not hesitate to seek professional help by calling 1-855-510-6475.
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