When I enter to my million accounting server database, it prompts to create a new database or attach an existing database.
Ensure that you have a stable internet connection. Check that you are able to read the server database through Windows button -> Key in \\<insert your server ip or server pc name> -> Ensure that Million folder is displayed
If you are unable to connect to the server, ensure that the server device and your device is connected to the same internet (Same internet/Same IP VIA Zerotier if work from home)