Please check the Service Pack of your laptop to see whether it’s SP1 、 SP2 or SP3 ( Click on Start, find my computer, right click on my computer and choose properties) SP1 can support WEP ony; SP2 can support WEP 、 WPA-PSK(WPA-personal); SP3 can support WEP 、 WPA-PSK （ WPA-personal ） 、 WPA2-PSK （ WPA2-personal ） Please make sure of the SP version of your laptop and set the corresponding security type. Once connected to the wifi, it shows “Validating identity” （ Windows cannot find a certificate to log you on the network ） Please try to cancel the authentication by click Here 4. Try to change your SSID and channel on the router’s configuration page. It shows “acquiring network address” after you entering the security key, later shows “limited or no connectivity” Please try bellowing one by one: a. For Windows Vista & 7: Please be awared that Vista has some compatibility issue with different security type, once you meet the connection problem with vista, it is highly recommended to try other laptops with different operating system, such as win xp or win 7. When try to connect the ssid, it shows “Windows was unable to connect to the XXX network” a. While you are looking at your wireless networks, remove any old UNB networks to prevent your computer from trying to automatically connect to them.If you see any of the following networks, highlight them and select Remove: If you are having difficulty getting connected on Windows 7 and have previously been connected at UNB, check to see if you have the program Secure W2 installed.
Try shutting down the router or wireless access point and the computer, then restart first the access point, and then the computer and retry.
This is where your computer or wireless device connects to become part of your wireless network. Check whether the laptop has a WIFI button, make sure the WIFI is on. Removing wireless network profiles on your computer may improve your wireless connectivity to your current wireless network. If you are not sure, please login the management page to double check.