Wireless network not validating
When a computer running Windows XP with SP2 attempts a wireless connection, it will go through validating the network. First, make sure your laptop is 'not' connected to the modem/router via an Ethernet cable and follow the steps: 1. Next go to "Network and Internet" and then "Network and Sharing". And yes, even if other devices can connect to it, sometimes it needs to be restarted to make it work with a single device. "netsh winsock reset" (without the " marks) and then hit enter. You should get a message saying you need to restart the computer. You can also try the following, if the above doesn't work and after the computer restarts... Press the "Windows" key and in the search box type "CMD" (without the " marks) and hit enter. When you see "CMD" or "Command Prompt" in the results list right-click on it and choose "Run as Administrator". When the new window loads, type "ipconfig /release" (without the " marks) and hit Enter. Then type "ipconfig /renew" (without the " marks) and hit Enter. Once that is done, close this window and reboot your computer.
Now type "netsh int ip reset" (without the " marks) and then hit enter. Once that is done, close this window and reboot your computer.
If you are manually configuring your device or having issues configuring your wireless device you should download and install the following certificates into your certificate store (Windows) or keychain (Apple IOS).