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  • NAT stops working after a while

    Greetings. New to the forum. Glad to be here!

    I have a client with Windows Server 2008 Standard Edition installed on their main server. The server functions as a router, providing NAT, DNS and DHCP to their LAN.

    Occasionally, without warning or any logging in the event viewer, NAT stops functioning. I can remote desktop into the server without issue, but local workstations cannot access the internet, nor can I remote desktop to other clients who I have setup port forwards for.

    Since there are no messages in the event viewer, I'm sort of at a loss as to how to proceed. I have tried re-configuring NAT once and the problem has continued, though I would be willing to do it again if anyone has any particular suggestions on how to proceed.

    Thank you in advance for whatever assistance can be offered.

  • #2
    Re: NAT stops working after a while

    Hi wbierman and welcome to the forums.

    Sorry for the bluntness of the following statement.

    Buy a router!!

    Ste
    Steven Roberts
    IT Mercenary

    MCITP:EA|MCTS|MCSE 2003 (Messaging and Security)|MCSA 2003 (Messaging and Security)|MCP|Prince2 Practitioner

    Don't forget to click on the Yin-Yang icon to leave reputation points if you think my advice has been worthwhile!

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    • #3
      Re: NAT stops working after a while

      Care to elaborate a little? Are you saying you didn't know it's capable of doing that? These people run a VPN which is a headache I don't need figuring out how to remotely setup their router for VPN passthrough (they are in Minnesota and I am in Hawaii).

      I've used Server 2003 for NAT dozens of times. This is my first time trying it with Server 2008. I can assure you that it does work, but once a day (approximately, perhaps exactly) it seems to stop working without warning or explanation.

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      • #4
        Re: NAT stops working after a while

        I suspect he is saying that, while RRAS works, it is much better to buy a specialist device dedicated to network address translation, in other words, a "router"

        What, if anything, are you seeing in the event logs?
        Tom Jones
        MCT, MCSE (2000:Security & 2003), MCSA:Security & Messaging, MCDBA, MCDST, MCITP(EA, EMA, SA, EDA, ES, CS), MCTS, MCP, Sec+
        PhD, MSc, FIAP, MIITT
        IT Trainer / Consultant
        Ossian Ltd
        Scotland

        ** Remember to give credit where credit is due and leave reputation points where appropriate **

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        • #5
          Re: NAT stops working after a while

          Thanks Ossian, that is exactly what I am trying to say.

          Although Windows is capable of this process but in my experience, if you run into problems, it saves a lot of time and effort, both now and in the future to just purchase a device who's sole purpose in life is to deliver this service to you.

          Windows can do many things, yet quite often we choose to purchase a separate device or system to do these tasks for us.

          If you really want to commit time to resolving this problem, I am sure we could help.

          I agree with Ossian, what do the event logs say? Could this be the newly improved Windows firewall causing an issue?

          Sorry for the crudeness

          Ste
          Last edited by Ste; 29th July 2010, 09:53.
          Steven Roberts
          IT Mercenary

          MCITP:EA|MCTS|MCSE 2003 (Messaging and Security)|MCSA 2003 (Messaging and Security)|MCP|Prince2 Practitioner

          Don't forget to click on the Yin-Yang icon to leave reputation points if you think my advice has been worthwhile!

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