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Can't login to website from workstation computers

Discussion in 'Windows Server System' started by tmdodd, 2007/10/10.

  1. 2007/10/10
    tmdodd

    tmdodd Inactive Thread Starter

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    Hi -

    I am running Windows 2003 SB server and Windows XP Professional on my workstation computers. There is a website with a health insurance company that I need to logon to everyday and have access to. At the end of last week I suddenly could not login to the website anymore through my workstation computers. The strange part is that I can still login to it through my server. I've verified it is still listed as a trusted site and checked all internet options in the advanced tab to be sure they are the same as on the server. I've contacted the insurance company and they are at a loss as to what the problem is. Does anyone have any ideas? I believe there was an update to my server around the same time and I'm sure it's probably a setting somewhere but I'm at a loss. Thanks!
     
  2. 2007/10/11
    ReggieB

    ReggieB Inactive Alumni

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    DNS is worth checking. The command nslookup queries your local DNS servers to resolve the DNS address to an IP address. If there is a DNS problem, this won't work on your client PCs. So for example, to test the DNS resolution for this site you would enter:
    Code:
    nslookup www.windowsbbs.com
    Try that test from you PC, substituting the problem URL for the windowsbbs one.
     

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  4. 2007/10/12
    ReggieB

    ReggieB Inactive Alumni

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    tmdodd has sent me the output from nslookup and they show DNS is resolving correctly (the name is resolving and is being resolved by his local server), so this doesn't look like a DNS issue.

    So next thing to look at is firewall settings. Are you using ISA in SBS to control access, or have you another system providing your firewall?

    Also worth looking at is that if this is a secure site you are trying to access, it is probably using https rather than http. That means it will use a different port (http = 80, https = 443) So worth checking that https rules are configured correctly.

    Also when you do the nslookup it gives you an IP address. Try accessing the site with the IP address rather than the DNS address. For example:

    http://www.google.com

    and

    http://64.233.183.103

    Both get you to google.
     

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