NPS allows authentication, Android device says "wrong creditentials"

[baczkus]

Hello,

When trying to connect from Android device to one of our Wifi's, NPS says that login is allowed, but device says "wrong creditentials".

radioactive trace: https://pastebin.com/U0Mqdmdt

Anyone knows why? 

Those logs dont say anything to me

[patoberli]

What kind of controller is this log from?

There are many failures in the log though, so something is definitively not working right. 

Oh and which software version is running on that controller? There were some Android 10+ bugs in some fairly recent firmwares. 

[baczkus]

This is: Cisco Catalyst 9800-CL Wireless Controller 16.12.1s

[patoberli]

That's an affected version. Please upgrade to 16.12.4a first (or 17.3.x): https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/16-12/release-notes/rn-16-12x-9800.html

See bug: https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu24770