Hi Stuart,
That's interesting that you say if the ED's reboot and then have to re-join that the AP's will give them another Link ID. I'm going to have to look into that a bit deeper. I've just added code to our ED's that if they fail to connect for some reason, they will reset themselves just to make sure they aren't in some funny state. If what you say is true, then our AP's could run out of Link ID's pretty quickly. I did a quick test on one of our ED's and after a reboot and a re-join it still had the same Link ID. I'm still going to look into it more on Monday.
Thanks, have a great weekend,
Barry