OSX and ATV with 5.2 firmware and ethernet internet connection installation guide
In order for PlexConnect to work the ATV has to have its DNS server changed to that of the ATV, in order to ensure that the device's IP does not change you need to need to either set a DHCP reservation or static IP in your router for the device and then make a note of it. Click on here for a Lifehacker guide on how to set this up.
On the main screen of your ATV select the 'settings' button:
On the settings screen of your ATV select the 'general' button:
On the general screen of your ATV select the 'network' button:
On the network screen of your ATV select the 'ethernet button' (if you are connected via wireless then select that instead):
Make a note of the current DNS server (you will need to add this into your PlexConnect settings later) and then click on the 'configure DNS' button:
On the 'configure DNS' screen click on the 'manually' button:
On the 'configure DNS' screen change the IP address to that of the device that you are running the PlexConnect application on and then click on the 'done' button (if you are using a firmware prior to 5.2 and it asks you to configure the IP address of your router and the subnet mask leave them as they are):
It should return you to the previous network configuration screen, check that the DNS server is set to manual and that the IP address is now that of the machine that you are running PlexConnect on:
