The CPU on the AWI nodes are getting very high utilization. Then a connection is not anymore possible to AWI (LOGIN).
Apache Tomcat 9.0.30
Oracle Java 11.0.8+10-LTS
Release : 12.3
Component : AUTOMATION ENGINE
The root cause was that the websocket was set to false.
Running AWI without WebSockets slightly increases the CPU load.
Set the allowWebsockets=true parameter in AWI's configuration.properties file resolved the issue.