This article outlines the common cause of this error, as well as steps to resolve it.
Netsweeper's Workstation Agent is used to send the IP address and username to the Policy Service, allowing for per-user filtering and logging.
If you are getting the 'apiversion not specified' error, it is likely because you have exceeded your maximum login sessions for the logged in user.
To resolve this in the WebAdmin, navigate to System Tools > Agent Config Manager, and in the Client Settings section, increase the value for the Maximum login Sessions to a value greater than 1.
