An effective method to troubleshoot QuickBooks 6190 77
                     QuickBooks 6190 77: Learn to 
Successfully Eliminate the Error Message
Getting errors while working on the QuickBooks software disrupts the 
smooth workflow. These errors can pop up out of nowhere and can 
create a situation of panic for the users. One such common error is the 
QuickBooks 6190 77 error code. This error arises while opening the 
company file and prevents the user from accessing the company file 
data. If you are experiencing the QuickBooks error 6190 77, learn to 
resolve it by performing the steps given in this article.
If you are having trouble performing the steps or fixing the error on 
your own, you can reach out to our support team at 1.855.738.2784 for 
assistance.

Why Does the QuickBooks Company File Error 
6190 77 Occur?
The QuickBooks error code 6190 77 occur due to the following reasons –
1. The company file is being accessed by multiple users in single-user mode.
2. There is a mismatch between the company file and the transaction log file.
3. Your company file might be damaged or corrupted.
4. The firewall is blocking the connection and preventing QuickBooks from 
working seamlessly.
How to Fix QuickBooks Error 6190 77 
Successfully?
The QuickBooks 6190 77 error message can be addressed with the help of the 
following solutions –
Solution 1: Disable Multiple Hosting on All Workstations 
except the Server Computer
Incorrect hosting settings can make it difficult to access the company file and 
work on the data. To fix the error code 6190 77 in QuickBooks, disable multiple 
hosting on your workstations.
1. Firstly, on the workstation having the issue, go to the QuickBooks File menu 
and head to the Utilities tab.
2. Find the Stop Hosting Multi-User Access option and select it to disable 
multi-user hosting.
3. Now, on your host computer, open QuickBooks and go to the File menu to 
select Utilities.
4. Find the Host Multi-User Access option and enable it to allow multi-user 
hosting.
5. Now, open the company file again and see if the QuickBooks company file 
error 6190 is fixed.
Solution 2: Correct the Issues in the Transaction Log and 
Network Data Files
If your network data or transaction log file is damaged, it can lead to the 
QuickBooks 6190 77 error code.
1. Browse for QuickBooks files with .ND and .TLG extensions and right-click on 
them.
2. Select Rename and add .OLD as a suffix, followed by hitting Enter.
3. Now, rerun QuickBooks and see if you can access the company file data 
without any error.
Solution 3: Include QuickBooks and its Domains in the 
Firewall Exception List
If your firewall is blocking the connection and causing the QuickBooks error 6190, 
you need to add QuickBooks and its following domains in the firewall exception 
list and configure your Windows firewall settings –
1. QbcfMonitorService.exe
2. QBDBmgrn.exe
3. QBUpdate.exe
4. DBManagerExe.exe
5. QBServerUtilityMgr.exe
Conclusion
If you are getting the QuickBooks 6190 77 error code, you can follow the steps 
provided above to fix it. In case the error still exists, you might need advanced 
troubleshooting. You can contact our technical team at 1.855.738.2784 for 
assistance with the same.