I fixed the LOBBY NOT JOINABLE for me

[thebumishere]

After playing for 9 years with same friend every night (zombies), on sept 6th we started getting the lobby not joinable . We have all ways played with NAT MODERATE and never a problem til the 6th, I searched for a week for help and nothing worked. So I decided to take TREYARCHs in game suggestion, I got into my router (first time ever) and I turned on UPNP thats universal plug and play for my connected computers IP number. that lets your computer communicate when online gaming that you want to use what ever port the game requests, I also in the same screen put in port 27017 for port forwarding, I was not sure here because it had 2 places (internal and external port number) so I put 27017 in both, next line gave 3 choices ( TCP or UDP or both) I chose UDP. All what I did was what treyarch suggests you do for the best online game experience. All this info is in the game menu under network, ALL THOUGH I was not in agreement on this because my game was working fine without doing this all these years, It seemed to have worked for me now and I am not having any problem joining lobby any more (well at least for 3 hours tonight) I will update this post if I get the lobby not joinable again, And to answer a important question....YES BOTH ME AND THE FRIEND I PLAY ZOMBIES WITH NOW BOTH HAVE ( NAT OPEN ) for the first time.. I really hope this was the solution for me, will see.

[thebumishere]

Sorry to all who have tried and game is not working..sigh..please keep this post going only with ideas that worked for you so we all can help as many as we can. I again will be playing a private game custom zombies with friend tonight and will update if it went good or bad on connection. Allways see that Im not right all the time, I was understanding the t7 patch was for those who had studdering issues, VPNs are for those who trust others to connect into your system for what you want to do. I will learn as I read just like you. I will continue to buy and play cod games as long as my pc is supported. I do think im at the limit for bo6 only because of my video card. But just might buy a new one if I have to. my specs are.....AMD FX-9590 8 core 5 ghz - 32gb ram - GTX-970 4 gig - H100i GTX Liquid cooler - 750 Watt Power supply - Windows 10 - 3 24inch monitors, hope to see some good posts here.