Wifi connected but can't reach internet

I've using ubuntu for a while, but last night its getting freeze and I have to force shutdown using power button. After that my wifi still normal and i can do ping, but it cannot reach internet. Its showing something like "couldnt found the IP" and "DNS unreachable". Can anyone help me? Im thinking about reinstall wifi driver, or maybe there is something else i can do?

1 Sorted by: Reset to default

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