At my company we have some restrictions and a strong firewall that has lots of protection. I do not know all of the rules and security policies that has been made.

I noticed some changes in the log in on this site recently, since than I am no longer able to log in to Super User, nor StackExchange. 

I only have a StackExchange account.

When trying to log in from StackExchange, the only options that appear are:  
`click here to sign up` and `enter your OpenID`.  

From the Super User login window, everything seems to appear but the `Login` buton is inactive (the other login options act the same - including the facebook and google login). I can press it, but nothing happens. 

My question is:  
How can I troubleshoot this and get a workaround?

Note: I have local administrator account but I do not have access to the domain. I am using internet-explorer. Also I would prefer fixing the problem myself (if possible) instead of contacting the department who made the security policy.

EDIT: To the person migrating this post - I do **not** want to discuss anything. This post is **not** about discussion. I need straight answers and troubleshooting. My browser seems not to work well with `https` and I need ideas how to find out what is going on.