X-plane11: Installer hangs like nothing. Cant continue!

Question

This problem is similar to https://questions.x-plane.com/19837/windows-installer-hangs-during-download 
Been trying to install X-plane11 from the installer file. 
I enter the key, the installation starts and everything is fine.
Then, comes an error that authentication cannot be completed(screenshot) in the server. I dont know why this happens because rest of the internet works just fine (although its a university network.).
At this stage i cant even continue the installation, I click on the button but nothing happens.
Please help!!
No log file is generated(screenshot).

Answer 1

Oftentimes, workplace or school networks require entering additional information in the installer settings "Network Proxy Host" field. You would need to find that information out from the administration.

Comments

Hey, thanks for responding.
I think I forgot to mention that my installer do starts. But, in the mid way, authentication issue occurs.
I even cut off my firewall loose but still, to no avail.
By the way, thanks for the screenshot, I really didnt know that, its very much appreciated.
I hope we can resolve this issue, it will be a really big big help.

Thanks.