Good day, RMI - MD. Let's get this working for you.
There can be several causes for this error of multi-user mode QuickBooks to appear, such as:
- QuickBooks may not be installed on the server
- The hosting settings may not be configured properly
- The antivirus or the firewall may not be allowing communication between user computers
- QuickBooks company file is not being opened by the database server
- Windows file permissions were not set properly
To get this sorted out, updating the QuickBooks Desktop release version is a good start when it comes to fixing program-related issues. After that, you can download and install the QuickBooks Tool Hub,
This tool helps us resolve all the QuickBooks issues you're having. Here's an article that provides the downloading and installation process: How to fix Error H202 and H505.
I'll be sharing with your some resources below for more details. You'll find more details about reviving the permissions as well as updating the data server manager:
Set up folder and Windows access permissions to share company files.
Install QuickBooks Database Server Manager.
Let me know how it goes by leaving a reply below, RMI - MD. I want to make sure you're all set. I'll always be around to help.
