Troubleshooting
Problem
The SSH connection does not have a matching cipher to use and denies communication between the hosts with the error "no matching cipher found."
Symptom
The System and License Management tabs show a managed host with status UNKNOWN.
The following image illustrates a managed host with status Unknown in system and license management tab:
Document Location
Worldwide
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Document Information
Modified date:
22 June 2026
UID
ibm11033252