If internet radio still fails after an update, ensure your router supports 2.4GHz connections, as the unit may not support 5GHz, as discussed on JustAnswer. Summary of Top Tips Best Update Method USB Method (FAT32) Why Update? Fixes AirPlay and Internet Radio Troubleshooting Perform Factory Reset (Stop+Standby) Support Link Pioneer USA Support
The unit will check for updates and prompt you if one is available. pioneerxsmc3sfirmwareupdate top
If you cannot locate the firmware file on Pioneer’s website, do not despair. You can still: If internet radio still fails after an update,
Before doing anything, you need to know what version your system is currently running. This will tell you if an update is even necessary. ensure your router supports 2.4GHz connections