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Mircosoft VPN Client Cannot Connect with Error Code 806 and a Cisco Firewall

By March 28, 2016August 5th, 2022Best Practices, Blog, Microsoft
VPN error message

Ran into an issue today where trying to setup a Microsoft VPN client into a corporate Microsoft server. When I kept trying to get connected the VPN would fail with the error code of 806. For this specific customer they required the type of VPN to be PPTP.


I found the solution to my problem was on my Cisco ASA. All I needed to do was add inspection for PPTP traffic.

policy-map global_policy

class inspection_default

inspect pptp


service-policy global_policy global

After adding the “inspect PPTP” on the firewall I was able to connect the VPN up with no issues. Hope this helps.

Jason Howe, PEI

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