What am I missing?

[joncone]

I have 2 cameras- one inside, one outside.  Why when I try to arm them through the website, it doesn't allow me to arm both at the same time.  How do you do this?

[MachineElve]

So it arms in the mobile app? Weird.
I would keep troubleshooting. I just got my 6 camera setup the other day and had a issue with updating the firmware for the cameras. I just kept messing with it and made sure after any change I made I saved it. Turns out I had to have it disarmed in order for me to update firmware for cameras.

[TomMac]

If you have two Arlo PRO cameras and the Arm command does not arm both at the same time ( this btw, is the default )

Click on ARMED and check the 'running man' over each camera , they should be black.

If only one is black, use SETTINGS>REMOVE DEVICE for the gray one and then bring it back as new so it is put into the armed command.

If both are BLACK , then it is something else with your settings or camera

[joncone]

I can only arm one camera, not both at same time.

[joncone]

Actually think I just figured it out.  

[TomMac]

well what happened ? share with others ....

[joncone · Accepted solution]

Sorry to say but I'm not really sure what happened.  I took one camera offline and synced again.  Most likely was user error and not a clear understanding of the rules.