I dont exactly know what was the issue. But, it seems to be related to some kind of network security. Apparently, my IT team had set up a separate vm and making the changes for that specific vm to be able to use Ganglia from there. I end up RDP into the vm, access Ganglia from it. The charts show up fine from it.

But, I agree with Prabhakar - No additional software was needed. It is something to do with the local network preventing loading the charts.