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I know this is a pretty common question but I did my research and couldn't find a solution for this issue. I'm configuring a development application server and I came to the point where I can ping both localhost and, but I cannot browse either of them from IE or Firefox. I can browse and ping other websites (such as google) just fine.

I tried flushing the dns (ipconfig /flushdns), restarting the IIS Admin service, restarting IIS itself, etc, and nothing seems to work. The results from ipconfig /all shows IP Rounting Enabled = No and WINS Proxy Enabled = No. Hwat is intriguing to me is that I compared everything in IIS in the dev environment with the production environment and the settings are the same, but I can browse localhost in production, but not in dev!

What could be causing the inability to browse localhost and from IE and Firefox?

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what if you browse to your local IP (not localhost) – Keltari Jun 4 '14 at 22:32
when you say can't browse, what do you mean? like can't browse a local web server? or can't do start \\ip or can't browse the web like google? – barlop Jun 4 '14 at 22:38
Is your dev server configured on port 80, and is port 80 open? – Pockets Jun 5 '14 at 0:13
@Keltari: Browsing my local IP give the same result - HTTP Error 404 (but, again, pinging the IP works). – Anna Jun 5 '14 at 15:54
@barlop: what I mean is that if I open my browser (IE or Firefox) and type either localhost or my IP address and search, I will receive an HTTP error 404 - Not found. But if I use the browser for anything else (Google, email, etc), it's working (which means the problem is not with the browser itself). – Anna Jun 5 '14 at 15:57

Try this: Reset TCP/IP and Winsock > right-click Command Prompt, and then click Run as administrator. enter this command:

netsh int ip reset c:\resetlog.txt

Restart the computer.

If that does not work try this command:

netsh winsock reset catalog

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I ran the command netsh int ip reset c:\resetlog.txt and restarted the machine, but now I can't login to the machine again :S – Anna Jun 5 '14 at 16:30
It turns out that when I ran netsh int ip reset c:\resetlog.txt, the machine lost its IP address and I couldn't login. I had to ask a team member to fix that for me, and once I could log back in, nothing had changed: still same error when I try to browse. – Anna Jun 5 '14 at 16:41
I tried the second command, netsh winsock reset catalog, and it didn't work either. – Anna Jun 5 '14 at 17:00

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