I've got no idea how easy or difficult it is to check on this particular Mac, but AirPort cards have at least some history of "failing" when their real problem has been that their cable has come either all or partly unplugged.

(I still think it's in your best interest to run AHT.)

Last edited by artie505; 11/01/15 05:12 AM. Reason: Expand "check"/Correct tense
The new Great Equalizer is the SEND button.

In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire