snowing - 2004-11-02

Hi.would you olease give me a hand? Everything looks fine with my pptp server built in poptop except when more than one client using the same username to login. Two pptp clients with the same username and password which fit with that in pptpserver, and thus they can both login
successfully. Then nightmare comes, if one of these
two users close down its pptp connetion, both the
two tunnels of server and the pptp clients will be closed down. What can I do to solve this problem?