Yamaha AVENTAGE RX-A740 Owner's Manual page 121

Problem
The application for smartphone/tablet "AV
CONTROLLER" does not detect the unit.
Firmware update via the network is failed.
Cause
The unit and smartphone/tablet are not in the same network.
The MAC address filter is enabled on the unit.
It may not be possible depending on the condition of the network.
Remedy
Check the network connections and your router settings, and then connect the
unit and smartphone/tablet to the same network.
In "MAC Address Filter" in the "Setup" menu, disable the MAC address filter or
specify the MAC address of your smartphone/tablet to allow it to access to the
unit (p.103).
Update the firmware via the network again or use a USB memory device (p.113).
APPENDIX ➤ Troubleshooting
121
En