Cattle is a general networking error, indicating that you are having difficulty maintaining a connection to Destiny. I'd advise a look over of the general networking guide: https://www.bungie.net/en/Support/Troubleshoot?oid=12915 If you have multiple consoles on the same network, be careful about port forwarding. Doing so may prioritize all traffic to the console forwarded to, at the expense of any other consoles on the network.