Can't connect to network
Let me welcome you first to the Intuit Community, tinytunes.
Connection issues may occur when the program is unable to communicate to the server. This could be because the QBDS is not running on the server, or a firewall is installed on the network.
To re-establish the connection, download and run the QuickBooks File Doctor. This is a tool that helps fix certain types of file and data corruption, Windows setup problems, and network setup issues.
Next, run the File Doctor to scan the file. Here's how:
The following article provides detailed instructions on how to use the File Doctor and steps to backup the company file: Fix company file and network issues.
Stay in touch if you have any other concerns or questions. I’ll be right here if you need more help. Have a good one.