Cannot join friends game. Friends don't receive my invites

Hi there, playing Titanfall. I cannot ever join one of my friends games after he sends me invites. I receive them but then when joining, I get a "Lost connection" error or "time out" error. He straight up never receives my invites. We tried every configuration
of inviting eachother to party, party and game, using the titanfall party invite screen. Every configuration, in every order, from every screen, both ways.. We hard reset Xboxes. We have OPEN NAT in network settings, we have good bandwidth, same datacenter.
It seems like we just tried different combos for like 45 minutes! We are in the same party as we can chat via voice.

I am very tech saavy and have been gaming for decades. I am completely baffled. What the heck is going on?

:)

 

i cant join a party on MW3! why?!

why can't I join a game from a friends invite? I friends cannot join from my invites, but we can all party up. I don't have elite and it was only affecting MW3.

 

Black Ops 2 trouble

I cannot accept game invites from friends, join any friends games in progress and my friends cannot accept from me either... This happens when I am playing Black Ops 2... Help please its getting very annoying.

 

Hmm have you tried contacting respawn on twitter they maybe able to help aswell.

have you unplugged the xbox one reset router and hard reset if you have try it again m8