Share your experience!
I am using sony xperia u since one month it is awesome phone. But one problem is when I want to connect to the internet and I allows data traffic but when I open my browser it cannot open webpage it says that you are not connected to the internet why it is so any problem in handset or setting ?
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It might happen when the internet connection speed is too low
Try changing the network mode to WCDMA only
Settings > more >Mobile networks > network mode > WCDMA only