I tried "Hey Lexus, navigate to ..." this morning and I got "Network busy. Please try again later." Did anyone else experience this before?

 

I have encountered that a few times before...maybe once a month or so? It's frustrating, to say the least. The last time it happened I reset the system (holding down the power button for a few seconds) and everything worked afterward. I can't say whether the reset fixed things, or the problem cleared on its own during that interval - you might give it a try and see what happens.

 

Had it once, did not do a reset, worked next time out.