My Gateway 4540 notebook worked fine untill recently directly to a Cisco wireless router but now it gives the error "a certificate is not found to log on to the wireless network.
I have made no hardware changes. It does find the network but says it is validating but never will go any farther.
The wired network works fine if I try it with a cable.
The Cisco router does not have a USB port so the automatic setup is not an option.
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