New Error message "some fields are invalid, cannot save value"

[Smess]

First time seeing this, happening on all my WK-2's when I make a simple change and click on apply in the Wireless area.  

Same thing I have always done all I was doing was adding guest network and changing wifi password on outdoor WK-2

Any ideas?  Anyone else having this happen.

Firmware is up to date??

 

Thanks