[cadmanlm]

OK, Same problem, I don't know why it did it, but my adapter was locked one ip address rather than "server assigned"

solution:
setting; all settings; connections; wi-fi; wireless networks; network adapters; broadcom 802.11 dhd network adapter; use server-assigned ip address; ok
also check "broadcom 802.11 network adapter"

another symptom of this problem is that one of your other wifi devices might lose internet connection when you turn on your phones wifi (happened with my laptop) because the phone hijacks the ip address

Hope this helps