Dlink DIR-600. I'm in an apartment where we're all connected to the internet through a router in another apartment (i.e., there's another router between the Dlink & the Internet). In configuring the Dlink, I had to change the IP address so it wasn't the same as the one that automatically appeared. It works fine... but now I want to have my daughter on the wireless network, but the network doesn't appear in her"Connect to a network" list in the Network & Sharing Center. & when I try to "Manually connect to a network," it doesn't accept the info from her computer, even though it matches what I find in the Security Properties when I click on the Network in my computer. How can she find the Network and connect to it? Thanks! Kage

Hi,
It is pretty strange that only one PC is not able to find and connect to the network. All I can do is give you a few suggestions to check the Network and the PC Settings.
-The SSID Broadcast and DHCP Server should be ON from the router, so that the network/ router would be visible to all the nearby machines and could assign IP automatically.
- Try to move the PC closer to the router and see if it can find the signal (the PC wi-fi card may not be power enough to receive the signals)
- Make sure that there are no obstacles such as concrete walls, metal cabinets between the router and PC. This reduces the signals and the PC fails to recognize them. Based on my on-site experience, I suggest that you may relocate the router to another location depending upon your network environment. It has always helped me a great deal. Placing the router at the desk level, avoiding obstacles such as concrete pillars, walls, steel cabinets etc in the signal path have remarkable effect on range and overall performance of the network.
- Change the LAN settings of the PC to defaults.

Hope it helps! Good Luck! Thanks for using Fixya!
CreativeTECH