hi Paul
if they are all zeroes then either
a> client does not support UAPSD
b> UAPSD is disabled on ssid profile
c> client has UAPSD disable (i.e. recent intel 7260 drivers)
if they are all 1s, i.e.
5c:c5:d4:7c:a3:44 v1-7030-psk ac:a3:1e:b7:df:30 Associated cWvSsEbM 0x1 Awake (1,1,1,1,all,0) 166 212 0 6 866 780 44 43 2[0x3] Thu Sep 3 15:46:16 2015 Thu Sep 3 15:46:16 2015 (0,0) 0 100/88
then client has negotiated to use UAPSD
things like this are not often documented (especially when the command is a debug command as this one is), if you have questions, just open more posts to the forum.
regards
-jeff