Download kernel_sources-3.14.20-tahr_PAE.sfs from http://distro.ibiblio.org/puppylinux/pet_packages-tahr/
Load sfs to puppy clicked on this package
# ln -s /usr/src/linux /lib/modules/3.14.20/build
# cd /lib/modules/3.14.20/build
# make modules_prepare
# make scripts
# mkdir ~/temp
Download source driver from http://www.mediatek.com/en/downloads/mt7601u-usb/ and extract to ~/temp
# cd ~/temp/{folder driver}
# make all
# make install
# modprobe mt7601Usta
# depmod -a
# reboot
I can't connect using Simple Network Setup (SNS) configuration. I use Network Wizard and Frisbee.