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Why resource (remote.domain name.com) is online but isn't responding to connection attempts?

    Question

  • The server is running SBS 2008 Standard Edition with all current upgrades and SPs.  I have check all required ports (e.g.: 80, 443, 987, 25) are open on the router.  When checking the name it resolves correctly to the public IP of the server.

    Checked the internal connections and they resolve correctly and display correctly as well.

    Where do I go from here?

    Wednesday, March 30, 2011 3:11 AM

All replies

  • First is this an external not seen or Internal?

    If Internal
    Re Run the "Fix My Network" and the configure Network Wizards.

    If External, and https://ExternalIP/Remote doesn't work.
    Is this a Business IP?

    Because If this is a Consumer ISP (IP) they May block things.

    Assuming those Ports are forwarded correctly.

    Go to https://www.testexchangeconnectivity.com/ and see what tests pass.

    If they still can't see your network.

    Put (TEMP) your SBS in the DMZ of the router (Just for this test)
    As a last resort.

    If it works as a DMZ, then undo it, and check your forwards.

    If you still Can't. Please Post your real remote.domain.com and we can see if we can see anything.

    Thanks
    Russ


    Russell Grover - SBITS.Biz [SBS-MVP] MCP, MCPS, MCNPS, SBSC
    Remote Small Business Server/Computer Support - www.SBITS.Biz  
    Easy Redirect to Microsoft's New SBS Public Forum - www.SBSRepair.com
    Wednesday, March 30, 2011 6:23 AM
  • Russell:

    I have checked all settings, and internally everything is working (e.g.: RWW, OWA, Sharepoint).  I have also checked with with Verizon (who is the ISP) and everything is fine on their side.  As a point of fact, I can RDP to the server with no issues.  I can also get to the router with no issues.

    I have also checked the ports, and they are correct and forwarded correctly.

    I will your tests and if they fail, will try the DMZ approach.

     

    Will let you know.

    Bart


    Bart Albini
    Wednesday, April 06, 2011 8:20 AM
  • if you don't want to post your external url here. shoot me an email and I'll have a look

    it's russ at sbits.biz

    Russ

    Russ Grover - SBITS.Biz [SBS-MVP] MCP, MCPS, MCNPS, SBSC
    Remote Small Business Server/Computer Support - www.SBITS.Biz
    Redirect to Microsoft's SBS Public Forum - http://SBSRepair.com
    Redirect to Microsoft's SBS Essentials Public Forum - http://SBSERepair.com

    Wednesday, April 06, 2011 9:13 AM
  • Russ the external url is https://remote.gothamcityclothing.com. Try it and I think you will get the same response I do.

     

    Bart


    Bart Albini
    Wednesday, April 06, 2011 10:52 AM
  • Port 25 seems to be open and port 80
    but the other ports don't seem to be open?
    Are you sure on this?

    If you go to https://remote.youdomain.com/ At the server.
    Does the website show up? (Internally)

    Have you run the connect my server to the internet wizard
    and the "fix my Internet wizard?"

    Russ

    Russ Grover - SBITS.Biz [SBS-MVP] MCP, MCPS, MCNPS, SBSC
    Remote Small Business Server/Computer Support - http://www.SBITS.Biz
    Redirect to Microsoft's SBS Public Forum - http://www.SBSrepair.com
    Redirect to Microsoft's SBS Essentials Public Forum - http://www.SBSErepair.com

    Wednesday, April 06, 2011 4:54 PM
  • Russ:

    Yes, I have run the internet wizard and fix my internet wizard.  No issues.  I just tried the https://remote.youdomain.com/ and it gives me Internet Explorer cannot connect.  Its almost as though ports 443 and 987 are being redirected when you come in from the internet.  Internally everything appears to be working correctly.

     

    Bart


    Bart Albini
    Wednesday, April 06, 2011 6:24 PM
  • Russ:

    I may have mis-understood you.  Https://remote.gothamcityclothing.com/ works fine internally, and so does OWA.  The whole issue seems to be coming in from the Internet.

     

    Bart


    Bart Albini
    Wednesday, April 06, 2011 9:59 PM
  • Temp put the SBS in a DMZ
    And if it works, then the ports aren't opening correctly :(

    Russ

    Russ Grover - SBITS.Biz [SBS-MVP] MCP, MCPS, MCNPS, SBSC
    Remote Small Business Server/Computer Support - http://www.SBITS.Biz
    Redirect to Microsoft's SBS Public Forum - http://www.SBSrepair.com
    Redirect to Microsoft's SBS Essentials Public Forum - http://www.SBSErepair.com

    Wednesday, April 06, 2011 11:34 PM
  • Also is this a "Business" ISP connection or Consumer connection.
    (They would usually block 25 instead of 443 however I don't want us chasing ghosts if that is the case)

    My Point is consumer ISP connections will sometimes block ports.
    Russ

    Russ Grover - SBITS.Biz [SBS-MVP] MCP, MCPS, MCNPS, SBSC
    Remote Small Business Server/Computer Support - http://www.SBITS.Biz
    Redirect to Microsoft's SBS Public Forum - http://www.SBSrepair.com
    Redirect to Microsoft's SBS Essentials Public Forum - http://www.SBSErepair.com

    Wednesday, April 06, 2011 11:38 PM
  • Russ:

    This is a Verizon Fios business connection, with a static IP.  I have a feeling that is may have to do with the DNS tables which are being provided by Powweb.  I will check it out with them.

    Also, when i do https://ExternalIP/remote I get the same problem.

     

    Bart


    Bart Albini
    Thursday, April 07, 2011 1:32 AM
  • When you put the SBS in the DMZ of the firewall does it work?
     Russ

    Russ Grover - SBITS.Biz [SBS-MVP] MCP, MCPS, MCNPS, SBSC
    Remote Small Business Server/Computer Support - http://www.SBITS.Biz
    Redirect to Microsoft's SBS Public Forum - http://www.SBSrepair.com
    Redirect to Microsoft's SBS Essentials Public Forum - http://www.SBSErepair.com

    Thursday, April 07, 2011 2:12 AM