When connecting against a FritzBox AP I'm seeing these messages in the kernel
message log:

[28823.249854] wlan0: authenticate with cc:ce:1e:af:b0:bd
[28823.258650] wlan0: send auth to cc:ce:1e:af:b0:bd (try 1/3)
[28823.265038] wlan0: authenticated
[28823.265309] wlan0: associate with cc:ce:1e:af:b0:bd (try 1/3)
[28823.270812] wlan0: RX AssocResp from cc:ce:1e:af:b0:bd (capab=0x431 status=0
aid=3)
[28823.271076] wlan0: AP has invalid WMM params (CWmin/max=15/1023 for ACI 0),
using defaults
[28823.272935] wlan0: associated

looking through the mailing lists this appears to be fixed with patch
"mac80211: Fix condition validating WMM IE".
Please include this patch.

Bug ID	1099732
Summary	Kernel message: wlan0: AP has invalid WMM params (CWmin/max=15/1023 for ACI 0), using defaults
Classification	openSUSE
Product	openSUSE Distribution
Version	Leap 42.3
Hardware	Other
OS	Other
Status	NEW
Severity	Normal
Priority	P5 - None
Component	Kernel
Assignee	kernel-maintainers@forge.provo.novell.com
Reporter	hare@suse.com
QA Contact	qa-bugs@suse.de
Found By	---
Blocker	---