Trying to play with a friend but every time we try to join eachother it says unable to connect due to a network issue.

How do you fix it?

Open dat NAT son.

Go on your gateway/modem page and turn on universal plug and play, if it still persists either plug your console directly into modem and change ip settings to manual and enter them in.

go to dashboard quit destiny then open it back up again.

Go to dash board open games and aps uninstall destiny.

Install halo problem solved