laptop has no internet and network is limited access through WiFi, it works with cable

Question

If I connect my laptop (windows vista) on my router via cable than I have network and internet,

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but if I do it via WiFi the network is identified as an unknown network with limited access and I can't ping the router, also I see other computers in my network folder but I can't ping them

Answer 1

it was the atheros wifi driver, I had to update it