Release notes are useful here:
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-9/release-notes/rn-17-9-9800.html#Cisco_Concept.dita_59a2987f-2633-4630-8c7b-a8e8aecdeaf7
Because you are limited on the 5508, you'll probably need to s...
Have you created the VLAN in the flex profile? This makes the AP aware of the VLANs and uses them for bridging traffic to the wire.
https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9800-series-wireless-controllers/213945-understand-flexco...
Just commenting in case anyone else has this issue. The matrix does show support for GLC-FE-100FX but has a note on it saying that they must be GLC-FE-FX be version 02 and not version 01. The output shown in Sokarlsson's has the VID as V01 so I expec...