2020-10-27 09:41:21,513 [cfg-mgmt-0] ERROR TaskManagement|Execution of '5f97eb32a7a95b14e69888d8' failed
java.lang.IllegalStateException: Pre-update check failed on host 42f84310-f0f3-41ab-925d-adc0b9241e05, required ports unavailable for communication
This error is due to the salt-minion service stopped in NwHost.
Please follow the below instructions to complete the update.
Login to putty of NwHost and start salt-minion service using below command. systemctl start salt-minion.service
Run update below command again in NwAdminServer to complete update successfully. upgrade-cli-client --upgrade --host-addr <nwhostIP> --version 18.104.22.168