Unable to install NSX-T packages on a specific ESXi host

Products

• VMware NSX

Issue/Introduction

When trying to install NSX-T VIB's and prepare a host for a cluster you receive an error 

Failed to install software on host. Host https://<Ip Address>/sdk not reachable. java.net.NoRouteToHostException: No route to host: java.net.NoRouteToHostException: No Route to host. 

Environment

NSX-T

Cause

When NSX-T installs VIB's the hosts management network is used. This error indicates that the NSX-T manager cannot reach the configured management VMK on the host.

Resolution

Verify network connectivity between NSX-T Manager's and the configured management vmkernel of the host. 

Additional Information

The IP address in the error may give you additional information. NSX-T manager may have an incorrect reference based on management vmkernel being referenced. You may have to check the host to verify the correct vmkernel management tag is configured.