If you’re using QuickBooks then be ready to be haunted by QuickBooks Error Code 6123, 0- which is a problem Connecting to the server. It usually appears when the connection to a Company file is lost. The occurrence of this error is usually seen when you are using  QuickBooks accounting software. The error occurring in QuickBooks is a pretty standard error that stops the functioning of the company file error. You can sort out the errors by reading this blog or if the problem still persists then you can contact our help support number available on the website.  While you are at it, you can refer to the QuickBooks accounting software for your accounting friends. Make sure they use the website registration link of the QuickBooks and after registering make sure they make a QuickBooks login account as well. 

How To Fix QuickBooks Error code 6123

Here are a few ways to resolve the 6123,0 QuickBooks problem number. Look at it;

• Stat by running QuickBooks File Doctor Initially, we’ll use this tool to resolve the problem. But first, you need to keep in mind a few things.

 Method 1: Run QuickBooks File Doctor

• Verify that QuickBooks is running the most recent update.
• A portable copy of the original file must be made. This error message appears when you open a backup (.qbb) file.
• Offset the hosting In the event where QuickBooks Desktop is only used by you. Stop hosting multiple user access (File > Utilities >). (Note: If there is Multi-User Access, the hosting is already off.) 

   Steps  To Run Quick File Doctor 

• Running QuickBooks File Doctor 
•  First, you need to download and run  QuickBooks File Doctor on your system. 
• Once QuickBooks File Doctor is successfully installed, open it.  
• Check your company file in the dropdown list, if it’s not there, browse to it.  
• Now check the check box for file corruption only and then select File Diagnostics.
•  Enter the administrator password and then OK.  
• After that, you will see a pop-up (message) about updating the file to a newer version of QuickBooks. 
• Now select Open file in newer version, this will repair and update your company file to the latest version of QuickBooks. Or choose file repair in the current version, it will repair your company without updating it. 
• Follow all File Doctor instructions to finish repairing the file. 
• If the problem persists and QuickBooks File Doctor does not resolve error 6123, 0, try restarting your computer. 
• If QuickBooks File Doctor still does not fix your error 6123.0 after restarting, follow the instructions below.

 Method 2: Reinstalling QuickBooks 

Try this fix: uninstall QuickBooks, then reinstall it. 

 Method 3: Resolving potential data corruption 

In most cases, this problem is caused by corruption of company files. So try to solve the business file corruption problem.

Method 4:  Use automatic data recovery  

 Restore the.ADR copy of this file and see if it works. It is possible that the file is corrupted and this can resolve the QuickBooks error code 6123, 0.

Method 5: Disable your system security programs 

 In most cases, your antivirus software blocks corporate files and uses them as malware or viruses. Therefore, the user may not be able to launch the  QuickBooks company file. In this case, you need to close the QuickBooks application and then open the company file. Usually, this step automatically fixes this error code 6123.0.

Method  6: Correctly set up the folder permissions

The host computer must have the user in a folder that contains the QuickBooks Desktop business file. Users, including the manager of the QuickBooks database server, have complete authority over this.

 Method 7: Rename both the.TLG and.ND files

The.ND file and the.TLG file should be renamed using the following steps:

• The corporate file folder should be opened.
• Select the corporate files.ND file.
• Rename the.ND file by selecting it with the right-click menu.
• Add “.old” to the end of the file name, e.g., MyCompanyName.qbw.nd.old.
• To rename the.TLG file, repeat the same procedures.
• Now The QuickBooks Desktop Company file should be opened.
•  After utilizing the database server manager, recheck the Company file

Method 8: Change QuickBooks’ Hosting Settings

 Here’s how  you can  change the hosting settings; 

• Activate the Company File.
• Now Select Switch to Single User Mode under the File menu.
• then select Stop Hosting Multi-User Access under File > Utilities.
• Select Host Multi-User access under File > Utilities from the menu.
• Select Switch to Multi-User Mode from the File menu.

Conclusion : 

 I hope this article will be able to solve your doubts and queries with regard to the QuickBooks error code 6123. If you are still not able to solve your query. Then you can contact our technical help support number for further help in regard to solving your Query. They will help you in sorting out the error.