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I have been working a little with the Cisco VPN in Vista, but no error relating to the original message in this thread. Here are some issues I have found, but may not really help anyone.... We previously used the statefull firewall included with the software with XP. This corresponded with our policy at server side, which checked that the statefull firewall was in place. The Vista version does not have the statefull firewall, hence failure to log in due to a "policy mismatch". When I used the Macintosh login credentials (for the VCF), this did NOT have a statefull firewall policy and let the client in without a problem. SUCCESS! I have found problems with "Reason 442: Cannot enable Virtual Adaptor error" and cannot figure this one out so far... The *latest* VPN from Cisco suggests a couple of reason why this happens including an XP upgrade to Vista rather than a clean install, as well as the Vista UAP causing problems, but I am still getting issues regardless. I noticed that a clean install of the VPN would get me a connection, but after a restart it failed. Uninstalling and reinstalling allows me to access again - until the reboot once more! Clem Clark Napier University Network Systems Group [log in to unmask] -----Original Message----- From: Support issues for windows in UK HE & FE [mailto:[log in to unmask]] On Behalf Of Simon P. Allison Sent: 25 April 2007 16:06 To: [log in to unmask] Subject: Re: Vista VPN client I too have problems with the (Cisco) VPN Client, so if anyone can shed any light. Cheers Simon -----Original Message----- From: Support issues for windows in UK HE & FE [mailto:[log in to unmask]] On Behalf Of Tim Wiser Sent: 25 April 2007 13:37 To: [log in to unmask] Subject: Vista VPN client I've got a VPN up and running and working really well with XP clients. However, when I try to connect my PC at home that's running Vista Business I get an error "789: The L2TP connection attempt failed because the security layer encountered a processing error during the initial negotiations with the remote computer." The router at home is a 3Com OfficeConnect 54g wireless which has IPSec passthrough (NAT-T) enabled. Has anyone come across this error before and know what's going on? Cheers, Tim. ********************************************************************** This message may contain privileged and confidential information. It is intended solely for the person to whom it is addressed. If you are not the intended recipient, please notify the sender and delete the message immediately. The text in this e-mail and any attachments should not be altered or tampered with in any way. Any views expressed in this message are those of the individual sender and do not necessarily reflect the views of South Downs College. ********************************************************************** This message is intended for the addressee(s) only and should not be read, copied or disclosed to anyone else outwith the University without the permission of the sender. It is your responsibility to ensure that this message and any attachments are scanned for viruses or other defects. Napier University does not accept liability for any loss or damage which may result from this email or any attachment, or for errors or omissions arising after it was sent. Email is not a secure medium. Email entering the University's system is subject to routine monitoring and filtering by the University.