Farm administrator can't add new web application or extend/delete an existing one

Case
I was working on a fresh VM installation, installing and configuring my SharePoint Environment. Unfortunately I stumbled on the problem not being able to remove the default
Web Application or creating a new one.

Problem
I started checking if all my permissions where sufficient. I checked Farm Administrators, WPG roles, Config Wizard, SQL Permissions, but it didn’t make any difference.

Solution
As a last resort I starting checking my client settings. It didn’t make sense how, but this was where the solution was hiding.

I assumed that, because some functions worked and some didn’t, that the page worked as expected. There were no script errors or messages from IE 9 that things didn’t work proper. Apparently execution or loading some active x or script was being blocked, because the page worked fine after applying some changed settings and restarting IE:

I noticed that the Uri of the Web application was a ‘trusted sites’, thought
it was running on my local machine. I added the Uri to the correct internet
security policy. Just go to internet options, click security tab, remove the Uri
from 'trusted sites' and add it to 'local intranet'.