Hi Joseph,
Since the WRVS4400N firewall uses stateful packet inspection there is an option, if you want, to turn off the firewall. What issue is it causing ?
i copied the following helptext from my WRVS4400N.
Firewall
SPI (Stateful Packet Inspection) Firewall, when enabled this feature, the router will perform deep packet inspection on all the traffic going through this router and drop those packets which does not follow the pre-defined protocol behavior. Default is Enable.
regards dave