QB Issue Resolution:
First, Multi-user is not the same as Remote. Multi-user is simultaneous access to a shared data file but each computer is running QB locally.
Second, I always recommend installing QB and QBDBMgr on the server. Launch QB on the server and get updates, routinely. Use it to open the data file(s) and set it to Host. Keep the database mgr service running all the time but close QB on the server and don’t use it there, otherwise.
If the first computer to open a data file creates the Hosting, this error condition is “floating host.”
Resolution for Issue 'How to setup QuickBooks Server to host multi-user access?' available: Yes (Solved).
Source: Intuit Community forum.
How to setup QuickBooks Server to host multi-user access?: 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 Other
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!
Error Recovery for Other [Canada]
E-Tech is the #1 Quickbooks data migration and Conversion service provider.
Additional Support Options: