This version of Unity is unsupported.
Method group is Obsolete

NetworkBehaviour.isServer

Obsolete The high level API classes are deprecated and will be removed in the future. public bool isServer;

Description

Returns true if this object is active on an active server.

This is only true if the object has been spawned. This is different from NetworkServer.active, which is true if the server itself is active rather than this object being active.