You can connect to the router and the signal is fine, but suddenly drops
1. There might be an IP conflict.
1. Click on Start and then Run. Type "cmd" and press OK. If you are using Windows Vista, press CRTL+Shift+Enter instead of pressing OK. If you do not have a Run command, go to Start, then All Programs, then Accessories. Click on "Command Prompt".
2. In Command Prompt, type in "ipconfig/all". This will list a bunch of IP addresses.
3. Look for an entry called IPv4 Address or IP Address. This should start with 192.168.1.xx
4. When you connect your DS to the Wi-Fi network, set its IP 10 higher than the very last number in your PC's IP address. For example, if your IP address is 192.168.1.0, set your DS's to 192.168.1.10
5. Find the Subnet Mask, Default Gateway, Primary DNS and Secondary DNS values and input them into your DS. DNS values may not be explicitly listed as Primary and Secondary. In this case, if it ends up being a list, enter the first two values.
6. Test your connection to see if this worked.
2. There's interference between the router and the unit. Remember, the DS must be within 30 feet of the router, preferably without say a cordless phone or microwave in between.
3. Router may be malfunctioning. Check to make sure that other computers are fine.