Destiny on Xbox One: 'unable to join target player'

[£15]

My two boys are trying to play Destiny on the same network, but they can't join the same team. They keep getting this error.

Does anyone know a fix?

 

[^187]

Its a long term known issue that they seem to be struggling fixing, network play seems to either work or doesn't for people. There is a thread somewhere on bungie.net about it suggesting ways to fix it, I can't seem to find it, maybe theres something in the official thread on this forum

Local Network Fireteam Issues

We are actively testing a proposed solution to an issue where players on a local network are unable to form a Fireteam. The proposed fix is somewhat complex in nature, as the changes would revise systems in place that all Destiny players use to form Fireteams with each other, or join matches. While this could solve the issue for some, it may introduce additional issues that would impact a larger population of the Destiny player base. As such, we are testing the proposed solution thoroughly to prevent further issues from being introduced.
In the case that this issue is not resolved by the proposed fix, or additional issues are found through testing, we will continue to pursue alternative solutions in hopes of addressing the Local Network Fireteam Issues. Additional updates on the investigation will be provided when possible.

 

[Buffman]

is your NAT type set to "Open"? for both players? check in xbox settings

There are ways for various routers to "open all ports"