I'm not able to connect to VPN server.....

Dear All,
            I was trying to connect to VPN Server  through CISCO VPN by using credentials given by the client.....It was giving the following error......        
       Secure VPN Connection terminated by Peer.
              Reason 427: Unknown Error Occurred at Peer.
           Not connected.
  pls let me know if you don't understand the question properly.......
 It would be great If I could get the answer at the earliest..

Thanks in Advance,Deepa....
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whiting002Connect With a Mentor Commented:
If you need help switching from IPsec over UDP to IPsec over TCP this site walks you through step by step https://sitelicense.arizona.edu/vpn/vpn_installation.html#HowtoSwitchIPSec
I found a couple things.  First check out this site: http://sisyphus.iocaine.com/pipermail/vpn/2004-January/004579.html.  It suggests using IPsec over TCP, instead of UDP.  The other thing I found was an issue with Microsoft XP.  I'm not sure if this is what you are using or not but you may want to check out this site: http://support.microsoft.com/?kbid=838207.  It says by upgrading to SP2 you may be able to fix this issue.
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