Below following step/processes to fix canon Pixma mg3000 setup
Make sure printer is turned on.
Press and hold Wi-Fi button and release it when Wi-Fi lamp flashes.
Press Color button.
Press Wi-Fi button once.
Press Color button or Black button. The printer enters Easy wireless connect mode.
Follow instructions on your smartphone or tablet. Still, if you are not able to fix canon mg3000 wifi setup then do visit following link and learn some more tricks. also, connect customer support there