Today I ran into a problem when adding a vCenter server by its hostname to vRealize Network Insight.
I received the following error message: Hostname/IP is unreachable.
Which (as explained in this VMware KB article) should be related to a network connectivity issue.
But after doing some troubleshooting (ping, curl and nslookup were all successful) I was send back to the drawing-school, because the network connectivity just worked as expected.
After restarting the Proxy VM the addition worked (as expected).
version: vRealize Network Insight 3.9
I’ve deployed the primary Platform VM and the proxy VM.
Afterwards I’ve upgraded the platform VM to a multi-node cluster (and didn’t rebooted the proxy VM).