Yes I agree, I believe this unit needs to be RMAd with D-Link.
I recommend that you phone contact your regional Linksys support office and ask for help and information regarding this. Ask for an RMA. We find that phone contact has better immediate results over using email.
Let us know how it goes please.
I've done this, but I think it's a hardware issue since the led for 2.4ghz doesn't light up.