After a plant-wide access-point image activation, most access points show the new image and a handful still show the previous one. Clients on those few access points are up. What should maintenance check first?
Select an answer to reveal the explanation.
Short Explanation
Most of the floor took the new image. The handful that did not are the maintenance list, not a radio mystery. Your next check is why those access points skipped the install, because antenna gain does not pick a software image.
Full Explanation
An image activation is supposed to land the same access-point code everywhere it was targeted. Access points that still show the previous image were missed, failed the download, or never reloaded onto the new code. Maintenance looks there first, while clients are still up, so the next window is not a surprise. The guest passphrase is a client credential. An access point does not have to match it to change images. The beacon interval is an over-the-air timer. It does not select a boot image. Antenna gain is a passive RF property. It does not block an image install at any particular gain figure, and these access points are serving clients, so the radios are not the reason the version is old. Exam caveat: an access point that downloaded the image and did not reload yet is a different miss from one that never received the file. The version display tells you which, and the fix is not the same. Operational check: list access points by software version, compare the outliers with the predownload or upgrade report, and schedule only those units.