Help!! RBR50 enable parental control and messed up HP Chromebook internet

I have had this Orbi set up for about 3 or 4 years now with no problems with any device (up to 60 different devices). Last Thurdays i updated the Orbi to the newest firmeware becuase i haven't checked it in awhile. Before the update, i was able to go in and turn the internet off to certain devices like my son's ipad and Chromebook. After the update i noticed i could not do that anymore until i turn on the Parental Controls. So i said ok i wll cause I need to control my sons time on the internet. Since then all the other devices worked fine but the HP Chromebook. By the app, the Chromebook device was turned on for internet, but if the chromebook is closed or goes to sleep and then turned on, it would not have the internet (the chromebook would show connected to my network). I then turned it off and on for hours trying to get it to work. I restarted the Chromebook , restarted the Orbi app and sometimes was able to get the cromebook to work on the internet but if left alone later would not have internet again. So i was worried about my son's chromebook not workng for school and decided to just disable the Parental Controls. After disabling the Parental Controls, all other devices work fine but the Chromebook. Wtih the Parental controls disabled, and try going to a web page on the chromeboook , the screen will show a "Your connection is not private screen" and saying the website cert is invalid. It will do this for every page, google, yahoo, weather channel etc. So now my son's chromebook is basically bricked from the internet. I am having to use my moblie phone as an hotspot so he can do his school work. Can someone plaeas help me! I know if I try calling Netgear, there is no way I can explain this situartion. I haven't tried resetting the Orbi yet because I would probally have to re-enter the SSID's and PW's on a ton of devices. Please help!  Any info will be welcomed! Thanks!

Tim