Camera won't arm and shows "mode was not applied" error message

[trc2102]

We finally hung our cameras and we are unable to change the mode from "Disarm" to "Arm".  When we first pulled the cameras out of the box and set everything up, it worked.  Now, when we press the "armed" button an orange banner shows up at the top of the phone saying "the mode was not applied (4003). Any ideas how to fix this? TIA

[trc2102]

Correction, I have a regular Arlo, not a pro

[TomMac]

Are you testing it on an app/phone or web... ?

If on app, test on a computer to verify if the system or app

https://arlo.netgear.com/