Did you resolve your Airplay/network issues? If not, check to see if your receiver can access the net: Push the "Net" scene button and see if you have access to net radio stations. If that works and your Airplay still doesn't work try this: On remote, click the “On Screen” button to access your general settings. Select “Setup,” then scroll to “Network” at the bottom. Go to the IP Address and make sure that DHCP is set to On. Make sure that Network Standby is On and that MAC address filter is off.
Someone else made a post with an IP address link in it and I think you said you didn't know what that was. This receiver allows you to use a web browser to control the receiver if you want to, something that's handy if you tend to be already working on your computer.
Hope this helps.
thanks alot Geeky Girl, it solved my issue, i can use my air play and remote control app