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Management Center unable to communicate with CAS appliances


Article ID: 241614


Updated On:


Management Center - VA CAS-VA CAS-S500 CAS-S400 CAS-S200


- CAS recently upgrade from 2.4.x to

- When attempting to connect or manage CAS version appliances via Management Center version,  error message is seen:

"failed to establish a secure connection"

And in Management Center network logs (Administration > Logs > Network_*.log), you will see the following error message:

[2022-05-11 17:29:57.836] INFO  http-nio-8080-exec-1   org.apache.http.impl.execchain.RetryExec  I/O exception (org.bouncycastle.tls.TlsFatalAlert) caught when processing request to {s}->https://CAS-IP:8082 : internal_error(80) 
[2022-05-11 17:29:57.836] INFO  http-nio-8080-exec-1   org.apache.http.impl.execchain.RetryExec    Retrying request to {s}->https://CAS-IP:8082 


Management Center or older

CAS version or newer that has Certificate Authority List uploaded 





CAS version COE was updated and MC version is running the older COE version, therefore there is a mismatch between the underlying Linux OS. 

Content Analysis behavior change from 2.4.x to 3.1.x.  This may happen when a Certificate Authority List has been added to CAS before the upgrade from 2.4.x to 3.1.x or when already running CAS 3.1.x 


Solution: Upgrade Management Center to version 

Workaround:  Remove all Certificate Authority List from CAS UI  > Settings > Web Management by highlighting each certificate and click "Delete CA".     Save changes afterwards.