This setting has two numbers:
Number of connections in keep-alive mode
Maximum number of connections allowed in keep-alive mode simultaneously
You can tune the maximum number of sessions that the server allows to wait at one time before closing the oldest connection by:
Editing the MaxKeepAliveConnections parameter in the magnus.conf file
Setting or changing the MaxKeepAliveConnections value in the Magnus Editor of the Server Manager
The number of connections specified by MaxKeepAliveConnections is divided equally among the keep-alive threads. If MaxKeeepAliveConnections is not equally divisible by KeepAliveThreads, the server may allow slightly more than MaxKeepAliveConnections simultaneous keep-alive connections.