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  • RPC over HTTPs problem

    Hi, This is a long winded one, so first let me apologise for that.

    We have an SBS2003 setup.
    I set up RPC over https all ok and everything worked fine when I tested it in the office.
    (I have even set it up with NTLM security)
    Got our ISP to give us a DNS address that links through the firewall to the server, (which only has one NIC - we have a seperate firewall)
    All ok, no probs. (well one little one, my PC wouldn't resolve the address to the server - found this was due to not using cached mode and the server only having 1 NIC or something - using cached mode solved it)
    I forgot about it and carried on with my system using HTTPS over the network in cached mode without me worrying about it.

    Then we employed a spanish lady who lives in spain, but connects to our systems here in the UK.
    I set her laptop up and on the network rpc over https worked fine.
    She went home to spain and she then called me to say she couldn't connect.
    The truth is, she can, but she has to wait around 5-10 minutes for Outlook to connect properly.
    I checked my system and found that it was connecting via TCP/IP, (Using the left ctrl and right click icon trick).
    I changed my rpc over https settings to use https on both slow and fast network connections.
    I restarted outlook and found that my PC too would not connect for about 5-ish minutes and would then revert to TCP/IP for it's connection.
    The only way I can stop this on my PC is to put and entry in my hosts file to resolve the external DNS name to the servers internal IP - it then connects over HTTPS instantly.

    I sent a hosts file to this user resolving the DNS name to the external address, (in case this was a DNS prob with her ISP), but this hasn't helped.
    She still has to wait 5 to 10 minutes before outlook finally connects, and this IS by https...

    Any ideas as to what on Earth is going on?
    I am suspecting the server as it is affecting both of us and am wondering if an MS patch has done something to the server - (I religiously install all windows updates on the server).

    Hope someone wiser or more experienced than me can help.

    As a side note, in case it helps, she uses Telefonica as her ISP and her ADSL router to Laptop network connection uses the same IP range as our internal network, but she is not using a VPN, and our firewall performs port forwarding and NAT so this shouldn't be a problem as far as I am aware...

    Adrian

  • #2
    Re: RPC over HTTPs problem

    Moved to SBS Forum.
    1 1 was a racehorse.
    2 2 was 1 2.
    1 1 1 1 race 1 day,
    2 2 1 1 2

    Comment


    • #3
      Re: RPC over HTTPs problem

      Sorry.

      Although we have an SBS2003 setup, I expect that RPC over HTTPS is an exchange issue.

      Hopefully someone will read it in here anyway...

      Comment


      • #4
        Re: RPC over HTTPs problem

        Originally posted by AColes View Post
        Sorry.

        Although we have an SBS2003 setup, I expect that RPC over HTTPS is an exchange issue.

        Hopefully someone will read it in here anyway...
        It's not a problem as it can be confusing where to post. Generally, if it is an SBS installation, pop it in here. There is usually a Wizard that can help you.
        1 1 was a racehorse.
        2 2 was 1 2.
        1 1 1 1 race 1 day,
        2 2 1 1 2

        Comment


        • #5
          Re: RPC over HTTPs problem

          As usual SBS makes it easy for you - UTFW.
          In CEICW Firewall Options you say you want to use Outlook over the Internet. Then you connect to your remote web workplace (RWW) or internally to //<server>/remote and lo, and behold, there is a document called Configure your computer to use Outlook via the Internet with a complete step-by-step with all the values for YOUR server.
          TIA

          Steven Teiger [SBS-MVP(2003-2009)]
          http://www.wintra.co.il/
          sigpic
          Iím honoured to have been selected for the SMB 150 list for 2013. This is the third time in succession (no logo available for 2011) that I have been honoured with this award.

          We donít stop playing because we grow old, we grow old because we stop playing.

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          • #6
            Re: RPC over HTTPs problem

            Sorry again.
            I should have been clearer...

            I have done that, and hence it was working...

            I am looking in to KB911820 to see if that update had anything to do with it - long shot but hey...

            Thanks for trying though...

            Comment

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