what could be the problem when you cannot contain a machine in network?
There is a known issue in Endpoint 126.96.36.199 where containment fails to work.
Reference: RSA NetWitness Endpoint 188.8.131.52 Release Notes - https://community.rsa.com/docs/DOC-94369
Please upgrade to at least Endpoint 184.108.40.206
Other things to consider if Containment still doesn't work.
Reference: RSA NetWitness Endpoint 4.4 User Guide - https://community.rsa.com/docs/DOC-81665
In the Endpoint UI, Machines, check that the machine you wish to contain is not showing as having a Driver Error Code problem. The Endpoint Agent software must be fully functioning.
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