Alright, so the trades worked yes, but I heard you can't use these mons in VGC events, which is fine 'cause my VGC season is over lol. I'll just find a way to get non-Ribboned mons once VGC '13 comes around the corner.
If your DS Lite can't connect to your router, it's more than likely using a WPA connection. I use a WPA connection myself, all that means is that you'll only be able to use your 3DS to connect to Pokecheck. No need to fiddle with your router more than likely.
(I'm not sure if I was clear enough conveying this in my last message, so I'll try rephrasing it.)
When you come to the 3DS equivalent of the middle screen, make sure that you only have one connection listed, the one with the DNS set to connect to Pokecheck. If you have an option to connect normally, your DS most of the time will. This is my best guess as to where you're going wrong.
If my attempt at trouble shooting didn't help, then I might know people that can. Pokecheck has a tech-support-esc chat in the form of the shoutbox. The users there can be a huge help at narrowing down your problem. Tell them that Mantyke sent you and I'm sure they'll be happy to help.
Well, I tried entering the DNS in both the 3DS' internet and the emulated DS/DS Lite Wi-fi connection, but none of them have worked so far :/
I tried to set up a new connection with the DS Lite's internet settings, but unfortunately my router is newer and is incompatible with the older encryptions of the DS Lite, so it says "Unable to find a connection point". I've tried putting the DNS in the main connection and, the trade still goes through; then I tried putting it into the 3DS' main internet point, and still nothing.
It might be my router's security or something, but I unfortunately am not able to open the script saying if something is wrong.
Well, from the sound of things, you aren't connecting to Pokecheck's DNS. Make sure that out of your DS's three internet connection, there's only the one used to connect to Pokecheck. Also, make sure that you've entered the DNS correctly.
Umm, when I got myself a Pokecheck account today so I could get some of your mons, I put in the DNS, and got to the GTS, tried to offer something... but it actually went through without the error code.
Is it something with my internet or something else? I don't know.