It depends on the encryption strength.
For 64 bit connections, the key is 10 digits long.
For 128 bit connections, the key is 26 digits long.
For 256 bit connections, the key is 58 digits long.
10 characters
16
The WEP key is unique to the installation. There is no master key.
Probably 578511 is an error indication but i know that a wep key has to have letters in it so 578511 is not a wep key.
No. Your WEP key is the password placed on the router you are trying to access.
A wep key has nothing to do with Pokémon Pearl, it is your wireless router's password.
No. The WEP key is a separate password.
well, my friend. Everybody has there own different WEP key
No The WEP key is the key used to encrypt the wireless traffic, so people can't sniff the data and see what your doing. No WEP key, no connect to the network. No router password, and you can't log into the router to modify the WEP key.
Check your wireless router's documentation on how to find its WEP key. Assumedly your PC/laptop also connect to your router, so they should have the WEP key already or else they couldn't connect.
The WEP key is found on the router, not the DS unit or the WII. The WEP is different all routers.
You set up the WEP key when you set up your wireless router.