You can activate the wlan by these commands instead of repluging:
sudo modprobe -r 8192eu sudo modprobe 8192eu
You need change 8192eu to your own wlan name. If you don't know the name, search on google with keyword
ID 148f:2070(your usb wlan's id which can be found by command
Or you can just add the wlan name to
sudo -i echo 8192eu >> /etc/modules exit
Then the wlan will be activated automatically when system start.