Particular Website dosent work for 2 users , but works for all other users .

Hi

We have a windows 2012 DC and windows XP client  and TMG firewall .I and another user  are not able to open a particular website It says :

This page can’t be displayed

•Make sure the web address http://www.website.co.uk is correct.
•Look for the page with your search engine.
•Refresh the page in a few minutes.

We have two proxy , one is the restricted proxy address and the teachers use it another is a unrestricted proxy access and the admin department use.

I tried on both the address and  it is not working for me and the other user although I have the administrator privileges. For other users the website works fine .
Please help , I am not sure where the problem lies will it be a permission or privileges that I need to set up. Any help much appreciated.
lianne143Asked:
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DrAtomicCommented:
Are you able to resolve the website? I.e. if you ping www.website.co.uk does it respond with the same ip address as on the working computers (you dont need the actual ping to respond, just the ip address associated with the domainname)?

If you are getting a different response then start checking your dns, are the computers using the same dns servers? Is there a manual entry for the website in the local hosts file?
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lianne143Author Commented:
When I ping from my PC is says
H:\>ping www.website.co.uk
Ping request could not find host www.website.co.uk. Please check the
name and try again.

H:\>

Is this the correct syntax

How to I manually enter the website address in the local host file.
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lianne143Author Commented:
I logged in as a domain\administrator into a DC  and  there the website works and tried pinging the website  and I get the same message , host could not be found.
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DrAtomicCommented:
The hosts file has to be opened elevated.

Click Start, click All Programs, click Accessories, right click Notepad and then click, Run as administrator.
If you are prompted for an administrator password or for a confirmation, type the password or Click OK or Yes to the UAC prompt.

Click File Open, in the dropdown box bottom right change Text Documents (*.txt) to All Files (*.*) and Navigate to C:\Windows\System32\drivers\etc\hosts
Open the Hosts file, make the necessary changes, and then click Save on the File menu.

DNS entry format is (one entry per line):
1.1.1.1 www.website.co.uk
1.1.1.1 website.co.uk

Hosts file entries are used before dns server lookups.
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DrAtomicCommented:
I logged in as a domain\administrator into a DC  and  there the website works and tried pinging the website  and I get the same message , host could not be found.

Our replies crossed each other;

Different more complete approach;

Download and run Fiddler on the non working computer (Fiddler is a passthrough proxy that will show you both http and dns status codes so that you can see where exactly going to the website fails); Fiddler can be download from http://www.telerik.com/download/fiddler

Or do a blind workaround test to see if the issue is indeed dns (I made that assumption from the get go, but it could be something different) by setting the local dns server on the non working computer to 8.8.8.8 (google public dns); be sure to set it back to your normal dns servers after you've completed this blind workaround test.
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lianne143Author Commented:
I tried adding these entries to the host file  and still the website is not working, I hope I have done it in a a right way.



# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host


# localhost name resolution is handled within DNS itself.
#      127.0.0.1       localhost
#      ::1                   localhost
#        1.1.1.1        www.website.co.uk
#        1.1.1.1        website.co.uk
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DrAtomicCommented:
Ok, you'd need to remove the hashtag in front of it, the hashtag is basically a comment marker (a marker that prevents the line from being read).

So change:

#        1.1.1.1        www.website.co.uk
#        1.1.1.1        website.co.uk

Open in new window


to:

1.1.1.1        www.website.co.uk
1.1.1.1        website.co.uk

Open in new window

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lianne143Author Commented:
Thanks I will run the fiddler and post the results.
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lianne143Author Commented:
Thanks so much guys for your help finally found that in:

Internet explorer -tools-internet options-connections- LAN settings-advanced.
In the exceptions windows website.co.uk was added , I removed this entry and the website is working, I checked in the GPO and couldn't find any settings , I don't think website.co.uk was manually entered.
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DrAtomicCommented:
Nice, did you find that using fiddler?
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