No a WiFi router is required.
Its not called a DSi router its any old router I got one for my DSi But i recommend getting a linksys G wireless router they work good
A wireless router is a piece of hardware, you can't download one.
Only if your computer has a wired connection instead of wireless. If you are using wireless, the DSi can connect to your router, it has its own wireless capabilities inside it. If you are not using wireless, you can buy a Nintendo USB wi-fi adaptor which plugs into your computer and turns it into a wireless hotspot that the DSi can connect to.
No, it is bilt in.
yes dum people
You need a wireless internet router near you to get the internet.
The WEP key is the encryption code needed to access a wireless router.
you need to get a wireless router and get it plugged in. I too have a dsi and used to wonder the same thing. :)
you have to ask whoevers router you are using what the password is
Best buy walmart or a electronic store
If you have Internet and a certain wireless router on your home computer, yes you can.