Error 500 on Webportal Administration

KNIME Server
1

Dear,

I am running Knime WebPortal Lite version 4.3 on Apache Tomcat (TomEE)/7.0.55 (1.7.1) with Java 1.8

It is working fine for the workflows, but when I go to the administration interface, I get the following error:

     "Admin pages not available. Error: 500 Internal Server Error"
     "Could not load status data from server. Error: 500 Internal Server Error"
     "Could not load license data from server. Error: 500 Internal Server Error"

In the Tomcat logs I see this error: 

 "INFO          com.knime.enterprise.server.application.LoginManagerImpl checkLicense                     : Message for invalid or missing Webservice license sent to user"

and

"GET /com.knime.enterprise.server/rest/v4/admin/status?_=1471607827683 HTTP/1.1" 500 75
"GET /com.knime.enterprise.server/rest/v4/admin/license?_=1471607827686 HTTP/1.1" 500 75

Apparently, I also cannot login to the server anymore from the knime client with a "connect time out" error on the client side, and the same error on the server:

Where should I start looking at?

Best regards,
Koen

2

The WebPortal Lite license currently doesn't allow using the new administration interface. This may change in the future.

If you get a connect timeout in the client but the WebPortal still works, then check your network settings (e.g. proxy) in KNIME.

3

that's a pitty...

The client problem was indeed solved by adjusting the network settings...