Q:

Unable to connect WiFi to the Pi

My new raspberry pi is unable to connect to the internet. I got a dongle provided from with the pi itself so it should not have any compatibility issues. The network icon shows 'wlan0: Not associated' when I try to connect. I followed some posts on the internet and went to nano /etc/network/interfaces
and changed it to 
auto lo
iface lo inet loopback
iface eth0 inet dhcp
auto wlan0
allow-hotplug wlan0
iface wlan0 inet dhcp
       wireless-essid "WiFiName"
       wireless-key "password"
according to one of the post said. I don't have a password so I left that part "". Still I am unable to connect. Please help!! 

A:

This often happens if the power supply to the RPi is not powerful enough.
A standard 0.5Amp USB is not enough to drive a Pi with a Wifi dongle.
My tip, make sure you get a sufficiently powerful power-supply for the Pi.  

