You can use this link to find the firmware you need ( note: log in to the portal first)https://extreme-networks.my.site.com/ExtrProductDetail?id=01t340000042Z99AAE
@moli Because the AP622 is a dumb AP (dependent on the wireless controller), its firmware is part of the controller. WiNG_v5_8_4_21_Release_Notes.pdfRFS4000_WiNG_v5.8.4.21.zipVX9000_WiNG_v5.8.4.21.zipNX9600_WiNG_v5.8.4.21.zip
@moli Because the AP622 is a dumb AP(is dependent on the wireless controller), the firmware for that AP is part of the wireless controller, once adopted, the controller upgrades it.Here is link to the RFS4000 controller firmware | RFS4000_WiNG_v5.8.4...