Act light on 360

[GLENRED]

What is the Act light flashing for on my xbox360?
It is on the menu that shows your connection status, cant seem to stop it from flashing yellow and my connection is ste

[scorp]

Act = activity ?

[baz7175]

actinometer

if it was I'd be running away quick as it's an instrument for measuring incident radiation

[Xenocide]

It's supposed to

[GLENRED]

cheers