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On Windows Server 2012R2, I have the following issue:

  • I can ping my other (Linux) server
  • I can telnet into it on port 80
  • I can send a GET /url/ and I receive a response with html (in telnet)
  • I can also issue Invoke-WebRequest -OutFile index.html http://my-server-ip/ and get index.html on the Windows machine...

BUT

Internet Explorer refuses to open any page, be it on the said server, or in the internet.

  • I have checked that no proxy is set in IE
  • I have checked that the Enhanced Security Configuration of IE is off (which it is)

The windows assistant just tells me that the web server is not responding (which is false, as the telnet experiment shows).

What could be the problem?

EDIT:

It finally got solved, but I don't know why. Someone connected with Administrator privileges, launched IE on the url, and... it worked. Then I connected with my user, and... it worked... So, any explanation would be welcome! (maybe some initialization that needs admin rights to operate ??)

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    Is IE Enhanced Security Configuration turned on? Try turning it off in the dashboard and trying again if it is. Mar 20, 2015 at 17:21
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    To elaborate on Catatonic's suggestion here's a step by step guide about disabling the internet explorer enhanced security configuration via commandline and via Server Manager: blog.blksthl.com/2012/11/28/…
    – megamorf
    Mar 23, 2015 at 10:15
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    What happens if you add your Linux server's IP/hostname to your Server 2012's Trusted sites?
    – Kinnectus
    Mar 23, 2015 at 11:51
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    If you have the access something that will almost certainly tell you what's going on is a packet capture. It could be a proxy or an MTU issue or some other random networking problem. Can you install Wireshark on the machine and do a packet capture of IE attempting to access the machine?
    – jotap
    Mar 25, 2015 at 6:48
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    It finally got solved, but I don't know why. Someone connected with Administrator privileges, launched IE on the url, and... it worked. Then I connected with my user, and... it worked... So, any explanation would be welcome! (maybe some initialization that needs admin rights to operate ??)
    – alci
    Mar 25, 2015 at 13:45

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