10-17-2021 11:41 PM
Basically title - has anyone ever had this happen? Upgrading the router worked just fine, but after some call issues i downgraded back to the exact same version as before - suddenly i got "Connection refused" - connected via TELNET, hit "show ssh / show ip ssh" and it said "SSH disabled - generate new keys" (paraphrased) - had to enter crypto key generate command to get SSH back up again. How can this be related to an iOS downgrade?
10-18-2021 10:46 AM
Yes that’s a pretty common thing to happen when you downgrade between a big gap in versions. Has happened to me more times than I care to remember. You’ll have to console in to the router and generate the SSH key for SSH to work again.
10-18-2021 12:26 PM
10-18-2021 01:36 PM
That would pose a problem. In general it would be advisable to always keep options at hand if you saw off the branch you’re sitting on. There’s no guarantees that any up- or downgrades will have a positive outcome.
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