forgot to mention im on fiber and the tp link is connected to the main providers router ive searched something about dmz to setup in ddwrt to by pass the first routers firewall?? how can i do this with ddwrt
you may need to put the put the wrt router into the dmz in the provider router which will open all ports to your wrt router
then in your wrt router open the port for your oscam server
or in the provider router see if there is a bridged option whch will put the provider router into modem status