That is correct. Except they are not R500's.... and it is not just chromebooks. I stumbled across this thread looking for AC-7260 issues.... Josh's issues were mimicking mine exactly. After much trial and error is seems that the AP's zf7363, zf7055 sort of just stopped accepting traffic and refuse to connect. we have done everything short of doing a factory refresh on the AP's themselves (unless a firmware upgrade does that, in which case we have). Possibly I should open a new thread, but I am very much annoyed at this point and I may not be politically correct in my next postings so I need to be careful.