I have a Arlo pro and Arlo pro 2 and I am unable to reconnect

[Shcollins]

They bot went offline. I disconnected them And now I reconnect them

[jguerdat]

What are the LEDs on the base showing?

[Shcollins]

3 green lights
And the middle light flashing

[jguerdat]

That's the correct indication.

Your original post suggests you "disconnected" the system. Did you just unplug the base or did you remove them in Settings, My Devices? If so the base should have green power and Internet LEDs but the Camera one should be off or amber. So the question is, what did you do to disconnect them and what have you tried so far? What do you see?