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How to Fix QuickBooks Error 6000, -77 when opening a company file? | Forum

Topic location: Forum home » Support » General Questions
Adelina Martin

QuickBooks error code 6000 77 is often seen when the file is stored in the incorrect folder. This is basically a 6000 series error that appears on the screen stating “We are sorry. QuickBooks encountered a problem. The support contains information about this type of error”. There can be a couple of reasons causing such an error, which we will be discussing later in this post.


Thus, if you are interested to resolve the QuickBooks error 6000, -77 by your own, then make sure to read this post till the end. However, if there is any query, or if the user is facing difficulty at any point of time, then contacting our technical support team is suggested.

William Feb 7

Causes of QuickBooks Error Code 6000

1. A firewall is blocking access for the multiple computers2. TLG file is corrupted3. QuickBooks installation is corrupted4. Improper network setup5. It could be a possibility for a corrupted company file.

Steps to fix QuickBooks Error 6000

Step 1 – Rename .ND and .TLG files

These are the configuration files that helps the users to access their QuickBooks company files on a network or multi-user platform. This error can be a reason for damage .ND and .TLG files. Renaming these files may help you to solve this problem.

1. Open file explorer (CTRL+E)

2. Click to This PC on the left-hand side

3. Type *.qbw on the top right-hand side corner (in Search this PC)

4. Once you find your company file under the list make a right click and choose the open file location

5. Now you are in your company file location, navigate to your QuickBooks .ND and .TLG files



6. Now add .OLD at the end of yours .ND and .TLG files to rename them

For Example, company_file.qbw.ND.OLD

Step 2 – Restore a backupYou can try to restore the company file backup to make your file up and running.

1. Open QuickBooks2. Go to File > Utilities3. If Stop hosting Multi-user Access… is showing click on it (see an image below)4. Now follow on-screen instructions5. Ensure that your company file location should be less than 210 characters. If your file location is more than the default characters try to make it shorter.



The Forum post is edited by William Feb 7