Device Status is not showing in Device management

A little unclear on what your doing. Did you have a working HA pair then up loaded one from an old UCS file?

Check the Trusted Peer devices on both devices:

Device Management ›› Device Trust : Peer List

If you have them listed delete them, confirm all your HA configuration is correct (ConfigSync, Failover Network etc.) on each device and then do an Add Peer.

For the Add Peer use the management address if possible, if not ensure the Self IP Port Lockdown is set to Allow Default or Allow All.