2662716 - "Unable to retrieve systems" from IQ cockpit, connection rejected - SAP IQ

When connecting to the IQ Cockpit from a web browser, the error "Unable to retrieve systems" is fired.

** Error observed in IQ Cockpit agent log :

2018-06-28 02:09:41,959 [INFO ] [adapter.UAFLoginCommand ] [scc-ui::189698] - Authenticating web login dba
2018-06-28 02:09:41,972 [ERROR] [security.AuthenticationHook ] [RMI TCP Connection(4954)-127.0.0.1] - Connection rejected because the maximum number of sessions (1000) is reached.
com.sybase.ua.service.AgentServiceException: Connection rejected because the maximum number of sessions (1000) is reached.
at com.sybase.ua.services.session.SessionService.createSession(Unknown Source)
at sun.reflect.GeneratedMethodAccessor1949.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)

• SAP IQ 16.0 
• SAP IQ 16.1

CR 803693, CR#803693, 803693, 822505, 822527, "Unable to retrieve systems", "Connection rejected", "maximum number of sessions", (1000), reached, "Connection rejected because the maximum number of sessions (1000) is reached." , KBA , BC-SYB-IQ , Sybase IQ , Bug Filed