my problem is that my xperia z cant connect tom my router after the 4.3 update i tried full format with flashtool but it still not connecting but it is only my router (((netgear))) i downgraded to 4.2.2 it connects normally i dont know what is the problem?? should i buy new router??
Try turning off wifi optimisation. In my experience, some routers do not like power saving modes that some devices use.
The setting is under the advanced wifi settings.
Settings -> WiFi -> Menu key -> Advanced -> WiFi optimisation.
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