If you are seeing this error, it indicates a problem with your networking setup. This can happen for a number of reasons, but often occurs after a WiFi blip, or when network or Parental Control settings have changed on your home network or game console. 
This error can show up when the router the console is connected through has gotten into a fundamentally bad state. Router reboots often help, but faulty firmware or failing hardware can lead to repeated occurrences of this error. 

To power cycle your modem or router please do the following: 

    1. Log off of Destiny
    2. Turn off your PlayStation or Xbox console
    3. Power-cycle your networking hardware (router, modem, etc.) by turning each item off, then waiting 30 seconds before turning them back on one by one, beginning with your modem
    4. Once your home network is back up, turn on your PlayStation or Xbox console and relaunch Destiny
Additionally, this error can also be caused by Parental Controls on some routers and may need to be adjusted to open up Player to Player connectivity. 
If you are encountering this error consistently, or if the above steps don't solve the problem, you will need to troubleshoot your networking setup to solve this issue, as port forwarding and firewall exceptions can help alleviate this error. For more information visit our Network Troubleshooting Guide