VPN 720 error with win 8 with Cisco VPN client 5.0.07.0440

[beadmin01]

Hello,

I have Win 2008 configured as RRAS- VPN server, with win 7/8 VPN clients.

half of these client machines are also running "Cisco VPN client 5.0.07.0440"

all win 7 machines works fine however most of Win 8 will not connect to windows VPN, if they also have Cisco VPN client 5.0.07.0440 intsalled.

Any suggestion.

Thanks

[beadmin01]

Workaround to this problem is:

1)- Unintsall Cisco VPN client from win 8

2)- reset IP stack