If you see EDGE node registration in pending state like below
Run below command on NSX-T manager to get thumbprint
get certificate api thumbprint
35c035720be59bcec7dd9d8067335510e191cdcd06fc360ffd75162f84422c6b
Run below command on Edge machine using putty session.
join management-plane 192.168.0.45 username admin password Welcome@1989 thumbprint 35c035720be59bcec7dd9d8067335510e191cdcd06fc360ffd75162f84422c6b
