Hi Dawid,
Thank you for the response.
No, we are not utilising a cluster for a specific reason that I cannot give. But that reason overrides the need for a cluster. FXP0 not being utilised.
The direction of the SSH connectivity request is as follows:
Laptop --> SRX01 --> core01 --> Core02 --> SRX02 (customer VR)
As mentioned, if I could SSH to any of the other devices I would know the answer, but I can SSH to everything except SRX02.
As an add on, here is the configuration for the security zone:
set security zones security-zone Customer-Network host-inbound-traffic system-services all
set security zones security-zone Customer-Network host-inbound-traffic protocols all
set security zones security-zone Customer-Network interfaces ae2.0
Even from the CLI of the other devices I get the "ssh_exchange_identification: Connection closed by remote host" error....
If this is a certificate issue, I don't know where to find the certificate file to delete and renew.