During this behavior you may also see one of the following critical errors in Event Viewer: (e.g the Wireless Adapter status is: ' Device is Working properly', but No Wireless Connections are available when you try to connect to a wireless network). In other cases, however, and while everything seems to function properly, Windows still can not be joined to any wireless network for no apparent reason. In most cases the wireless connection problems are due to a wrong input of the password for the wireless network, a poor Wireless signal or to a switched off wireless adapter.
Several times I have helped friends and customers to resolve connection problems with their wireless network.
