Cisco 9500 switch ssh problem

[osman.elhanafy]

Dears,
I have 2 cisco 9500 core switches (virtual stackwised with each other), these switches connect to cisco 9400 edge switches.
 -When i try to connect via ssh from core to another edge switches ,sometimes it takes so long time (more than two minutes ).
 - When i try connect via ssh from edge to another edge, i don't face any problem.
notes
- There is no loop
- the virtual stack is working properly
- software version is 16.06.03

Did anyone face such this problem before ??

Thanks 

[Georg Pauwen]

Hello,

what is the uptime of the stack ? Have you tried a reboot of the entire stack ?

[osman.elhanafy]

hello,
it is a new installation, When i reboot the switch ,it works properly for a time and then the problem is repeated.

[Georg Pauwen]

Hello,

are you using local or remote (TACACS) authentication ?

Often this is related to high CPU utilization, you might want to check that.

Also, I assume you are using SSH version 2 ? You could try different modulus values when creating the RSA key...

[osman.elhanafy · Accepted solution]

the problem has been resolved when i upgraded the ios version from 16.6.3 to 16.8.1

Thanks