SBS2003 Routing and Remote Access Stops

Posted on 2005-05-12
Last Modified: 2009-12-16
Hi all, trust you are well.

I have an SBS2003 server running with Routing and Remote Access enabled to give laptop users the ability to dial in from site. There are 8 modems attached. Every few days the the modems just stop answering calls, and too get it working again i run the Configure Remote Access Wizard in server managment and its fine again.

Any ideas how i can solve this ? Can i put an alert on somehow to warn me? Can i set it too automatically restart iteself every few days -1 ?

Question by:SeanNij
    1 Comment
    LVL 74

    Accepted Solution


    It sounds like you are running out of ports and perhaps IP's.

    The default configuration on an SBS configures 5 PPTP ports (the ones uesed by your dial-in clients) and 5 L2TP ports.  As shown here:

    Name      Device      Used By      Status      
    WAN Miniport (PPTP) (VPN3-4)      VPN      RAS/Routing      Inactive      
    WAN Miniport (PPTP) (VPN3-3)      VPN      RAS/Routing      Inactive      
    WAN Miniport (PPTP) (VPN3-2)      VPN      RAS/Routing      Inactive      
    WAN Miniport (PPTP) (VPN3-1)      VPN      RAS/Routing      Inactive      
    WAN Miniport (PPTP) (VPN3-0)      VPN      RAS/Routing      Inactive      
    WAN Miniport (PPPOE) (PPPoE4-0)      PPPoE      Routing      Inactive      
    WAN Miniport (L2TP) (VPN2-4)      VPN      RAS/Routing      Inactive      
    WAN Miniport (L2TP) (VPN2-3)      VPN      RAS/Routing      Inactive      
    WAN Miniport (L2TP) (VPN2-2)      VPN      RAS/Routing      Inactive      
    WAN Miniport (L2TP) (VPN2-1)      VPN      RAS/Routing      Inactive      
    WAN Miniport (L2TP) (VPN2-0)      VPN      RAS/Routing      Inactive      
    Direct Parallel (LPT1)      PARALLEL      Routing      Inactive      

    The default configuration also sets aside IP addresses for these ports as follows:

    Client IP Address      Name      Lease Expiration      Type      Unique ID      Description      sbs.yourdomain.local      5/20/2005 7:10:08 AM      DHCP      RAS       sbs.yourdomain.local      5/20/2005 7:10:08 AM      DHCP      RAS       sbs.yourdomain.local      5/20/2005 7:10:08 AM      DHCP      RAS       sbs.yourdomain.local      5/20/2005 7:10:08 AM      DHCP      RAS       sbs.yourdomain.local      5/20/2005 7:10:08 AM      DHCP      RAS       sbs.yourdomain.local      5/20/2005 7:10:08 AM      DHCP      RAS       sbs.yourdomain.local      5/20/2005 7:10:08 AM      DHCP      RAS       sbs.yourdomain.local      5/20/2005 7:10:13 AM      DHCP      RAS       sbs.yourdomain.local      5/20/2005 7:10:13 AM      DHCP      RAS       sbs.yourdomain.local      5/20/2005 7:10:13 AM      DHCP      RAS

    What is most likely happening is that a client is dialing in and there aren't any available ports (if 5 are already in use).  There could also be a lack of available IPs if the assigned ones are holding onto their leases for another machine.

    Increasing your PPTP ports to 10 (leaving the L2TP's alone) should also increase the reserved IPs.  To increase them... open your server management console and go to the following:

    Advanced Management > Computer Managment (Local) > Services and Applications > Routing and Remote Access > Ports

    Right click in an open area of the right side task pane and select properties.  Then click on WAN Miniport (PPTP) and click Configure...  increase the number to 10.

    Rerun the Configure Remote Access wizard again.

    Lastly, Right click on Routing and Remote Access (per the path above) and select properties.  Click the Logging tab and select "log all events" along with "Log additional events for debugging".  Then... watch those logs for the next few days and see if there are any errors noted...


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