The problem is that your scanner remains retracted.
You have to go to options and enable "Firing deploys hardpoints".
It's stupid. To put it lightly.
+100 if I could
That was it... Firing Deploys hardpoints needs to be Enabled indeed.
Thanks, now I saw for the very first time what that Data Link scanner does. Never got it to work before (since Beta1), not once.
-- edit --
Oh *lol*
Just found out scanning Data Links inside inhabited Systems isn't a good idea.
Got a Bounty onto my head, Wanted for 24hrs and some weird Data Link Scan worth 18000Cr in the Empire ?!
Oh well, learned something new again. No Data links or me then inside inhabited Systems