When the Logitech Solar App isn't detecting the K750 keyboard for Mac, it may be because the:

• Keyboard is out of range

• Keyboard is not connected to the receiver

• Receiver is not securely plugged into the computer

  

Try either plugging your receiver into a different USB port or reconnecting it to the keyboard.

NOTE:For instructions on how to reconnect, see answer 360023404533.

Once the K750 keyboard for Mac is properly connected and being detected, it will display in the Solar App, as shown below.