QB Issue Resolution:
My understanding, and the way I always setup QuickBooks for multiple users, is that the dedicated server needs no extra licensing. It is possible to to setup only the database server on the network server rather than the full software. I prefer doing a complete install on the server though (as you are suggesting) in case the data file needs to be accessed at the server level.
Hope that helps.
Resolution for Issue 'In a Multi-User setup do we need a license for the PC that is playing Host and not used by any user directly?' available: Yes (Solved).
Source: Intuit Community forum.
In a Multi-User setup do we need a license for the PC that is playing Host and not used by any user directly?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.Support for Quickbooks/QBO
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