The ONTAP upgrade from 9.3x to 9.5x on a two-node cluster configured with NSE using external key servers is paused. The following errors are seen on boot during the takeover of the first node: 0x800ex...The ONTAP upgrade from 9.3x to 9.5x on a two-node cluster configured with NSE using external key servers is paused. The following errors are seen on boot during the takeover of the first node: 0x800exxx00: 0: NOTICE: RpcConnectionCache: markFailure: markFailure: New Quarantine for localhost:53xxxxxxx (spmd)/1[tcp]{fffffffd|ffffffff} with timeout(20.000s) Reason:: RPC: Port mapper failure - RPC: Unable to send The output of security key-manager query shows the key servers are in Available status.