Check the following items:
Security->VPN Passthrough->IPSec Passthrough = ENABLE
Create a new entry under:
Applications&Gaming->Port Range Triggering
(application) (triggered range) (forwarded range)
(name) (start port) (end port) (start port) (end port) (enable)
Cisco VPN 500 500 500 500 X
For me this settings solved the problem. This setting shoul be clearly stated by Linksys on the product manual and on the web site, after all they are supposed to be owned by Cisco!
Best regards
CMaia