Hi, I've had my network for a year with zero issues. Until today! So this is my first call for help.

First things first - I woke today to find that my Deco mesh network isn't seeing our phones, 2 FireTV's, laptop, tablet, etc in the device list except oddly enough, the WIFI printer. The app on my phone sees both Decos, IP, says the network is optimized 'perfect'. I know my network is fine because I am able to post this from my hardwired pc (to Firewalla Gold router). 

I rebooted everything to the same situation. Have i been hacked through my Firewalla/Deco? Thanks very much, Shep

I am trying to post a link to my pcloud for the dozen or soscreenshots I took, but i keep getting an 'illegal link' notice. Can someone help me w/ that, too?  I know, I'm needy..