Purchased a 2nd hand Pro 3 Base station and 3 cameras. My app is unable to find it.

[AnneT1979]

I purchased a 2nd hand Base station and 3 outdoor cameras from someone who upgraded their system.  They said it was working fine when they took them all down.

The light on the front of the unit is blue but when I try to find it using my app it keeps coming up that No Arlo devices found.  
I have pressed resent but the light is remaining blue and not flashing as the instructions said that it should.

Any ideas?

[jguerdat]

Make sure the person you got this system from has removed all of your system components from their account. You can't add it to yours until they do.