I know literally nothing about Pokemon and am no expert on anything but having read a dozen or so of these threads on the WiFi specs, from what I have heard it also depends on the system ie DSi VS nds or DS phat etc.. as well as the card. Both must match.
Unless I am sorely mistake, which I may be, up until the DSi (and maybe still..), all Ds versions were only able to use wep, that is the system itself is capaable only of wep, and the card would not alter that...
Not exactly. You could go with no encryption at all, though that's pretty much considered a bad idea by anyone who knows how to use a computer.
But yeah...if you want to play Pokemon online with WPA encryption you'll have to buy the actual cartridge or wait for a flash cart to come out that has the full capability of DSi mode enabled... The latter might not exist until the 3DSi XL is out, though.
If I have another router, can I connect it to my first router and make a temporary WEP network, taking it apart whenever I wasn't using it? Just curious. All the other wifi hotspot programs only broadcast WPA/WPA2
If you have 2 routers you can connect your internet on both, let one be WPA2 for your other devices, and one WEP for DS.
If you connect one router to the other you probably will get two signals,
they may differ the security system, leting you have one WPA2 and the other WEP.
Or you can, change temporary one of these to WEP, but for that you would'nt need 2 routers.
Try changing your router to WEP and using the same password of your router now.
If it works, you will not need to let it WPA2.
WPA2 is more secure indeed, but if you use a simple password, and is a normal user,
it will not have much advantages to you using a WPA2 security