That is weird. We've deployed 7 9HPns so far, and only one had a problem. It was a radio problem where it would associate fine and the signal levels looked good, but a lot of packets would get lost in transit. We replaced the unit and now the link works as it should. Since you mentioned LEDs, I have...

I realize I'm replying to an old thread, but I have not seen any more recent discussion of the issue.

I just wanted to say that we have 2 Metal-9HPn CPEs connecting to an RB411AH/XR9 AP, and it works just fine.

This is using NV2 on a 10MHz channel. I have not tried other configurations.