when try to ssh to sbc -server unexpectedly closed network connection

 

I can connect via ssh to both marl SBC’s and wdc-prod-acmesbc-02  but NOT to wdc-prod-acmesbc-01

 

But I can connect to the browser…

When I try to ssh I get a popup Putty fatel error window:

Server unexpectedly closed network connection

 

What does this mean and how do we fix it?

 

 

WINSBC02# sh ver

Acme Packet 3820 ECZ7.2.0 Patch 8 (Build 250)

Oracle Linux branches-6/el6-u7 {2015-08-06T07:00:00+0000}

Build Date=10/29/15

WINSBC02#