solution
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1, Restart the router, the wireless router supports between 15-20 wireless devices; When the number of connected wireless devices exceeds the maximum number, even though you are connected to wireless; But you have wireless Internet access; At this point you can unplug the wireless router; Turn on the wireless router in 10 minutes.
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2. The wifi of the mobile phone is stuck in a dead loop, and press and hold the connected wifi name in the wireless setting; Delete this wifi and reconnect;
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3, Enter the wireless Settings general inside to restore network Settings! Reconnect the wireless can note: the above may not be the phone hardware failure only contact after-sales.