From: barmar@alum.mit.edu   
      
   In article <4ad60b3d$0$281$14726298@news.sunsite.dk>,   
    Chresten  wrote:   
      
   > I have 2 ISP on a location whit a ADSL and VDSL line. And both use DHCP   
   > to allocate a IP to the  ROUTER.   
   > Some time(most of the time), when the is a renew(dhcp), on the wan side   
   > off the router, from/to  the ISP.   
   >   At  that instant i loose the TCP connection, it simple stop. An it is   
   > only when there is a renew, i loose the connection.   
   >   UDP an other type of connection is function OK, all the time. The ISP   
   > wont extend the dhcp renew time(1/2 hour).   
   >   What can i do ???   
   >   
   > :)   
   >   
   > -C   
      
   Does your IP change when the renew happens?  TCP connections are keyed   
   off the IP, so a connection can't be maintained across an IP change.   
      
   Normally, a DHCP renewal should retain the same IP, unless the ISP is   
   reorganizing their IP space and the old IP is no longer available.   
      
   Another possibility is that there's a bug in your router, that it clears   
   out its NAT table whenever there's a DHCP renewal, even if the IP hasn't   
   changed.  Make sure you have the latest firmware, and if that doesn't   
   help get a new router.   
      
   --   
   Barry Margolin, barmar@alum.mit.edu   
   Arlington, MA   
   *** PLEASE don't copy me on replies, I'll read them in the group ***   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)