i installed a server in my synology diskstation。 it runs good now, i have a asua router ac87u , used merlin firmware , i connect to server in my pc , it's runs well. but i cant connect it from out router.( i have make my synology diskstation the DMZ and i can use almost everything and files in my synology diskstation from internet. )

what can i do now ? for use my ts3 server from internet .