I have trouble capturing lwapp data frames. I have AP on port 1, i have instructed my switch (3750) to monitor this port and send it to a available port on the same switch (no stacking). On the second port , i connect my sniffer. I see lwapp control frames (RRM,ect) , keepalives and 802.11 assoc frames, however, i do not see the encapsulated data frames. I need to see those to know that my end to end qos tagging is working properly.

traces with wireshark.

Any ideas ?