Thanks for coming back, @g2g2. As mentioned by mu peer @Nick_M, you'll need an intuit account as part of the security features. 

Hence, in our continued efforts to improve security across our products, we're making the change to use One Intuit login when accessing QuickBooks. This will give the primary contact greater control over user access and make it easier to have all your Intuit products seamlessly connected. 

For future reference, check out our resources for further insights about using the multi-use network in QuickBooks desktop: 

• Set up and install a multi-user network for QuickBooks Desktop
• Features available and tasks you can perform in single or multi-user mode

Feel free to message again if you have additional concerns. We're always here to help.