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Problem of the week 37

Discussion in 'Training & Development' started by Tinus1959, Sep 10, 2007.

  1. Tinus1959

    Tinus1959 Gigabyte Poster

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    We have one exchange server 2003 and two locations.
    These locations are connected by VPN. One server is running windows 2000 server, the other windows 2003 server. Exchange is running on the 2000 server.
    There was absolutly no problem untill we installed servicepack 2 for windows and service pack 1 for exchange. From that moment on the link would not allow the transmission of data bigger than 1500 bytes.
    The MS helpdesk could not find a solution.
    Finally we did it!
    What did we do to make this work again?
     
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  2. hbroomhall

    hbroomhall Petabyte Poster Gold Member

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    Reduce the MTU?

    MTU problems are common when VPNs are in use.

    Harry.
     
    Certifications: ECDL A+ Network+ i-Net+
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  3. ffreeloader

    ffreeloader Terabyte Poster

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    Dropped Exchange and went open source? :twisted: :biggrin
     
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  4. Tinus1959

    Tinus1959 Gigabyte Poster

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    We tried that, but that did not work. The strange thing is that from the 2003 server to the 2000 server there were no problems. From 2000 to 2003, even a dir from a shared folder stranded when there were more than 8 files in the folder. The data send would then be more than 1500 bytes.
     
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    WIP: MCSD, MCAD, CCNA, CCNP
  5. Tinus1959

    Tinus1959 Gigabyte Poster

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    Hmmm, that's to simple. It would spoil all the fun of beating the system:biggrin
     
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  6. Sparky
    Highly Decorated Member Award

    Sparky Zettabyte Poster Moderator

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    Install SP2 for Exchange? :blink
     
    Certifications: MSc MCSE MCSA:M MCSA:S MCITP:EA MCTS(x5) Security+ Network+ A+
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  7. zebulebu

    zebulebu Terabyte Poster

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    I vaguely remember a client site where this caused an issue a while ago - is it related to Receive Side Scaling? MS 'turned on' some features in SP2 that were meant to speed up the TCP/IP stack in Windows, but some of them broke things horribly in NAT/VPN environments
     
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  8. Mathematix

    Mathematix Megabyte Poster

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    You rebooted.
     
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  9. BosonMichael
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    BosonMichael Yottabyte Poster

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    Sometimes the simplest solutions are the best! :thumbleft
     
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  10. Tinus1959

    Tinus1959 Gigabyte Poster

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    Was not available at that moment.
     
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  11. Tinus1959

    Tinus1959 Gigabyte Poster

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    Very close. We failed to reboot between the installation of the sp of the OS and the sp of exchange. So we uninstalled the sp of exchange, rebooted and reinstalled the SP of exchange and all was well.
    The interesting thing was that the MS specialist tried to solve the problem for more than a week and did not find this sollution.
     
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  12. nicolinux

    nicolinux Byte Poster

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    something related at renewing the vpn key after a certain amount of traffic.
     
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  13. Tinus1959

    Tinus1959 Gigabyte Poster

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    No, the correct answer has allready been given.
     
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  14. Sparky
    Highly Decorated Member Award

    Sparky Zettabyte Poster Moderator

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    Interesting, after the OS SP did you get a prompt to reboot? :blink
     
    Certifications: MSc MCSE MCSA:M MCSA:S MCITP:EA MCTS(x5) Security+ Network+ A+
    WIP: Exchange 2007\2010
  15. Tinus1959

    Tinus1959 Gigabyte Poster

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    I think so, but the operator decided not to because he also installed the exchange sp during that session. He figured he could save a reboot this way.
     
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  16. nicolinux

    nicolinux Byte Poster

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    Any more questions ?
    I like the game !
    Nico
     
    Certifications: mcse win2k3, mcts x4. mcitp enterprise admin
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