You may need to change the radio preferences or reset the receiver if that's not possible? Details of the firmware below:
RX-V679/RX-V779/RX-A750/RX-A850/HTR-6068/TSR-7790 Firmware Update Version 2.65
Yamaha is pleased to offer the following firmware update to ensure the best possible performance and latest features for your AV receiver.
This firmware includes
- A switch from vTuner to airable.radio as the new internet radio service provider
- Stability improvement
usa.yamaha.com