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No DNS resolution on wireless

Discussion in 'Wireless' started by soundian, Jul 2, 2010.

  1. soundian

    soundian Gigabyte Poster

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    Had an odd one today at work.
    Full internet access with ethernet cable, but wireless doesn't do DNS resolution.
    ipconfig shows same DNS server (default gateway).
    Can ping by IP address on wireless, but not by domain name.
    Sometimes IE works but ping by domain name still fails.
    Another notebook on the premises has no problems.

    I think it's a flaky wireless card but any ideas on what/how to troubleshoot next are welcome.
     
    Certifications: A+, N+,MCDST,MCTS(680), MCP(270, 271, 272), ITILv3F, CCENT
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  2. Sparky
    Highly Decorated Member Award

    Sparky Zettabyte Poster Moderator

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    Can you ping an external IP address ok?
     
    Certifications: MSc MCSE MCSA:M MCSA:S MCITP:EA MCTS(x5) Security+ Network+ A+
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  3. soundian

    soundian Gigabyte Poster

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    Yeah, can ping the internet no problem with IP address, just domain name doesn't work.

    I should also add, I've tried different drivers and the cards manufacturers app rather than letting windows take control.
    OS is XP iirc.
    Edit: It is XP, I used Start>Run to access CMD
     
    Last edited: Jul 2, 2010
    Certifications: A+, N+,MCDST,MCTS(680), MCP(270, 271, 272), ITILv3F, CCENT
    WIP: Knuckling down at my new job
  4. Modey

    Modey Terabyte Poster

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    Had a very similar problem recently with a couple of Acer laptops with Intel wireless cards. They were obtaining IP's ok, but won't ping the DHCP server, Default Gateway etc.. but could get to the Internet.

    After swapping a known good wireless wireless card into the laptop it was totally fine. This was the case with two different laptops. So we are having the cards swapped out under warranty. It's not happened yet, but it should be covered as they both have platinum Acer warranties.
     
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  5. soundian

    soundian Gigabyte Poster

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    That now sways me firmly into the hardware problem camp. I'd never seen this behaviour before, but I take the Sherlock Holmes attitude to problems, eliminate the impossible...
    Did these laptops connect OK through wire?
     
    Last edited: Jul 2, 2010
    Certifications: A+, N+,MCDST,MCTS(680), MCP(270, 271, 272), ITILv3F, CCENT
    WIP: Knuckling down at my new job
  6. Sparky
    Highly Decorated Member Award

    Sparky Zettabyte Poster Moderator

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    What card is it mate? I take it you have tried driver and firmware updates?

    Edit: worth trying an external DNS server as a test?
     
    Certifications: MSc MCSE MCSA:M MCSA:S MCITP:EA MCTS(x5) Security+ Network+ A+
    WIP: Exchange 2007\2010
  7. Modey

    Modey Terabyte Poster

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    Totally fine via the wired connection.

    Drivers yes, firmware no. It's probably one of the few things I didn't try.
     
    Certifications: A+, N+, MCP, MCDST, MCSA 2K3, MCTS, MOS, MTA, MCT, MCITP:EDST7, MCSA W7, Citrix CCA, ITIL Foundation
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