SP1 w/ISA - outgoing pptp problem - 3rd post - please someone???

Discussion in 'Windows Small Business Server' started by Wes, Sep 1, 2005.

  1. Wes

    Wes Guest

    I've posted before about this and haven't seen any responses. I've continued
    to try debugging the problem and have some packet level info.

    We are having pptp connection failures between certain configurations. The
    failures are always (in our small sample) when an originating SBS 2003
    Premium w/sp1 Server tried to connect to a network not utilizing ISA. One
    common denominator is that both not ISA networks in the sample are using
    Linksys routers, however we can pptp to and from those networks fine except
    when the origination is from one of the SBS 2003 sp1 ISA systems. I don't
    know if this problem existed prior to sp1.

    In all cases, the failures are that the originating system thinks that the
    remote server issued a disconnect. However, when I capture the packets, I
    actually see that during the ppp authentication exchange, the originating
    system suddenly sends an apparently unprovoked TCP Ack Rst packet to the
    destination end thus appearing that the originating system drops the
    connection.

    I'm pretty much at my wits end trying to figure out what is going on here.

    Here are the 5 Networks we've been pursuing this issue on:

    1 - SBS 2003 Premium w/sp1 through ISA directly connected to Internet
    2 - SBS 2003 Premium w/sp1 through ISA directly connected to Internet
    3 - SBS 2003 Premium w/sp1 through ISA directly connected to Internet
    4 - SBS 2003 Premium w/sp1 bypassing ISA (only one nic used) through linksys
    router
    5 - Win2k Server w/sp4 through linksys router

    PPTP SrcNetwork - PPTP DestNetwork - Result
    _________________________
    1 - 2 - Success
    1 - 3 - Success
    1 - 4 - Failure
    1 - 5 - Failure

    2 - 1 - Success
    2 - 3 - Success
    2 - 4 - Failure
    2 - 5 - Failure

    3 - 1 - Success
    3 - 2 - Success
    3 - 4 - Failure
    3 - 5 - Failure

    4 - 1 - Success
    4 - 2 - Success
    4 - 3 - Success
    4 - 5 - Success

    5 - 1 - Success
    5 - 2 - Success
    5 - 3 - Success
    5 - 5 - Success


    Wes
     
    Wes, Sep 1, 2005
    #1
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  2. If you are a Microsoft partner you have access to business down support.
    If you aren't a Microsoft partner and you support that many SBS boxes...
    get over there and sign up.

    If you have this many issues post sp1 the issue will prob be comp'd
    [can't guaranteed ...but..]

    I don't mean to be mean..but why are you not calling PSS and instead
    relying on a public newsgroup channel for support.

    Use the appropriate resources for this issue. Man I'd call like three
    posts ago.
     
    Susan Bradley, CPA aka Ebitz - SBS Rocks [MVP], Sep 1, 2005
    #2
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  3. Wes

    Ray Collins Guest

    Fat lot of good that will do !
    It's not a business down situation as far as M$ is concerned.

    I would try Linksys first.
    If it's ISA 2004 use the real-time ISA monitor to see what is happening.


     
    Ray Collins, Sep 1, 2005
    #3
  4. Yeah but it's still one call and you've spent how much time on this
    issue rather than getting to the root of it?

    Your time in troubleshooting costs money you know.

     
    Susan Bradley, CPA aka Ebitz - SBS Rocks [MVP], Sep 2, 2005
    #4
  5. Wes

    Ray Collins Guest

    Pity Microsoft doesn't seem to know that.

     
    Ray Collins, Sep 2, 2005
    #5
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