I got the following error on two VSP 7200 switches. Got it solved on 1 switch by disabling and re-enabling SSH, but on the other switch, this doesn't work.
There are no active sessions, increasing the max-session allowed doesn't help, setting the timeout to 1 second to get "old" (there are none) session closed... But without any luck.
disabling rsa-auth did the trick on the last one, I could re-enable it after first ssh connections was successful.
Any one experience with this? Why does this happen?