Unable to initialise OBServerDLL.dll – Error code: -105

Symptom

Creating a connection fails with the error:

An error has occurred while processing connection : Failed to Connect to DIAPI Server: SAP B1 Response – 
Unable to initialise OBServerDLL.dll (Error Code: -105)

Cause

The SAP licence server details setup within the tool are incorrect.

Solution

Check that both the license server host name and port number are valid for your SAP installation.