I recently installed a pair of Deco M9 Pluses.  Now none of my Smart bulbs or switches will connect or set up.  The KASA app sees them when it tries to set them up.  It gets to the part where it asks for the wifi name / pwd then it fails when it's trying to update the bulb or switch at that point.

I can log into the DECO app with nop problems.  I can log into the KASA app with no problems.

Anyone else having problems?  What did you do to fix it?

Thanks in advance.