Hi all, i have read the following posting - [URL]http://groups.google.com/group/comp.dcom.sys.cisco/msg/81d58c31469d558b[/URL] and have been trying to get this to run for the last few days, can someone point me in the right direction please ? it is running on a 871 router with the 870c-advipservices image, connecting to a microsoft rras box. the connection is temporally established then dropped as if there is some sort of negotiation issue. I have tried this with connecting to a cisco router at the other end and it worked fine, but for some reason it just doesn't want to connect to a rras box. i have tried 3 different rras servers just to make sure. The config is below, i have prob missed a couple of things - Current configuration : 1624 bytes version 12.4 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption service internal hostname Router boot-start-marker boot-end-marker logging message-counter syslog no logging console enable secret ###### enable password ##### no aaa new-model dot11 syslog ip source-route no ip gratuitous-arps ip cef ip multicast-routing no ipv6 cef multilink bundle-name authenticated vpdn enable vpdn-group 1 request-dialin protocol pptp rotary-group 0 initiate-to ip ##.##.##.## archive log config hidekeys interface FastEthernet0 interface FastEthernet1 shutdown interface FastEthernet2 shutdown interface FastEthernet3 shutdown interface FastEthernet4 no ip address shutdown duplex auto speed auto interface Vlan1 ip address 10.35.23.90 255.255.255.0 ip nat inside ip virtual-reassembly interface Dialer0 mtu 1450 ip address negotiated ip pim dense-mode encapsulation ppp dialer in-band dialer idle-timeout 0 dialer string 123 dialer vpdn dialer-group 1 no cdp enable ppp pfc local request ppp pfc remote apply ppp encrypt mppe auto ppp chap hostname ### ppp chap password 0 ##### ip forward-protocol nd ip route 0.0.0.0 0.0.0.0 10.35.23.254 no ip http server no ip http secure-server ip nat inside source list 1 interface Dialer0 overload dialer-list 1 protocol ip permit control-plane line con 0 no modem enable line aux 0 line vty 0 4 password ###### login scheduler max-task-time 5000 end Any help with this problem would be appreciated