When we try to import our 4215 sensor to IPSMC 2.2, we receive the message in the IPSMC
Import failed due to exceptionError importing configuration files from the sensor - Unable to get sensor version from the sensor. Possible reasons: X.509 certificate is invalid or sensor version was downgraded.
The sensor is at version 5.1(6)E1 Signature Update S295.0
What could be the problem and how can I resolve it?
Could be the tls certificate expired in device or time is not synchronized between IPS and IPS MC server.
Log into the sensor with administrator privilege and give the below command in privilege mode
Query and apply the new key in the " Certificate Management " page of IPS MC. Now try reimport.
Check the time in both sensor and IPS MC server machine and it should be synchronized.
If still you have the issue. Please open a TAC case and contact me. We will debug further.