Using Linksys AE2500 adapter, keep getting "limited access" error?

[Muldog]

I'm having the exact same problem on my old desktop with the same adapter/router combo.  I've tried a few of the recommendations which haven't worked.  I tried plugging the adapter into my work laptop (Windows 7 64-bit) and it seemed to work better, although I haven't done extensive testing.  I wonder if it has to do with the usb hardware/drivers for the old motherboard in the desktop?  The only other things I can think which may be causing it is my cable modem (moto surfoard sb6121) or my provider, Comcast.

[SimplySerenity]

I've had this adapter for about 6 months+ now, and it's always done this ever since I got. I've literally tried changing every setting possible.

[bruno.deschenes]

I have they exact same problem. If my memory serves me right, I have this problem since I upgraded to Windows 8. I think the problem is that Cisco AE2500 USB adapter is just a piece of junk. Don't mistake me here, my router and all my previous wireless equipment have always been Cisco/Linksys (and I will keep buying Cisco/Linksys stuff for my networking needs) but this AE2500 is a real piece of scrap.

[Jake_2.0]

The adapter does not have drivers for windows 8 yet, so there might be a compatibility issue between the adapter and windows 8.