Are you trying to connect to the wireless network
on a WINDOWS VISTA / 7 computer? Sometimes on the
windows vista computer , it will ask you for the
PIN number when you try to connect to the wireless
network. On the same window at the bottom you will
find the option " I want to connect to the network
or I want to enter the key manually". If you click
on that option , it will ask you for the security
key.
If you don't know the security key, then you will
need to check the settings of the router. You will
need to open the router set up page where you can
check all the wireless settings of teh router. If
you want, you can also find the PIN on the
wireless settings page of the router.
If you are trying to connect any other wireless
device to the network and it is asking you for the
PIN then you will need to open the set up page of
the router and under wireless settings you will
find PIN.
Click here for step by step instructions