Anyways, the reason for trying out this stunt on the DSL-G604T was that the old firmware didn't allow me to connect my Nintendo DS to the router.
Now after applying the new firmware (an Australian one at that), I can enjoy Nintendo WFC action on my Nintendo DS without having to connect to my WiFi Link USB adapter, which in turn was connected to my PC.
I would hate to reinvent the wheel by coming up with a guide on updating the DSL-G604T firmware as Drakx.org has a darn detailed one over here, which I followed, and yeah, it all went well. So check it out, update that router, and get online on Nintendo WFC!
But of course, if you are stuck with a wireless router that totally refuses to communicate with your Nintendo DS, feel free to check out this bunch of USB WiFi Adapters designed to work with the Nintendo DS:
- Mayflash WiFi Link
- Nintendo Wi-Fi USB Connector
- Hori Wi-Fi USB Adapter
- Cyber Codefreak Wi-Fi Startup Set