Bungie is currently investigating zebra error codes I will list things you can do to fix this issue • make sure at the very least you have a viable steady internet connection and check your signal latency •reset your system cache •make sure your routers firmware is updated and hard reset it for at least 10 seconds •try running a wired connection. A wired connection can usually troubleshoot most connection issues effectively •don’t take up to much bandwidth with other devices if possible some people have decent internet but have multiple devices connected to it and using it constantly, if your downloading something or streaming something on another device it can severely hinder the connection quality of the one your trying to game on. Good luck, hope this helps