Can't Play With Friend On Same House Network

[(PSN)Lastjudgment27]

HI,

 

    I recently downloaded this game for my PS4. My friend and myself both have PS4's and want to play this game together , but we keep getting the port 3690 & 3963 error. We are on the same local network in the house, which leads me to believe our systems are trying to use the same port out of the router and that is causing issues. Is there a way to fix this problem? I would really like to play with him, but currently we can not even see each other online inside of the game to be able to invite each other to a match. On the PS4 friend list we see each other, just not when inside of the game. If anyone else has run into the problem and knows a work around or a fix, please let me know. It is very annoying not being able to play with my friend because we are on the same local network.

 

Thanks for any assistance.

[(PSN)Blue_Miggy]

I'm having this exact same issue. My brother and I both own ps4s and try to play warframe online but it it'll only let one of us play. I've set my brother's ps4 as a DMZ and he connects just fine. But now I can't get invited to games due to the strict NAT issue. It keeps saying to direct the ports 4950 or 4550. I cant still play the game but I can never get invited to anything.