Hi there, jweir.
I'm here to provide some clarification on your questions regarding the QuickBooks Web Connector.
It's generally recommended that the Web Connector should be installed to where the main company file is located. This is to ensure that the guest computers would be able to access the company file without any problem.
I'm also including this helpful article for more information about the Web Connector: Set up QuickBooks Web Connector
Please feel free to post any other questions you have below, I'm here to ensure your success. Thanks for coming to the Community, wishing you all the best!