Eurica..! i solved my problem, how i ve done it. while PC companion opened...i restarted Experia Z3 and wow, suddenly somehow recognized my phone and established internet connection... so intially your computer should be connected to internet 1st set up PC companion on your computer. 2.nd connect your phone to computer via USB cable 3rd. wile connected, turn off Z3, and restart, will take few min to PC companion recognise your Z3 and connect internet voila...!
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i am used to with itunes ( iphone program) and Kies programs ( Samsung's progra) to back up files etc from smartphones to computer... But Sony's PC companion is the fat program cannot recognize either LAN nor Wireles at home., although i have internet connection with computer, even i downloaded with same internet connection but PC companion can not recognise that internet line either..such an stupitidy!!!! Sony's technical service suggeted to update JAVA and unactivate Norton virus program, i have done so...but still PC Companion can not recognize internet. I ve done all sorts of proxy settng. stil no contact with existing internet. . I also use Sony Vaio Z series compuer to communicate with Sony experia Z3 telephone...what a waste of time and hassle! No help from Sony technic service either. I am so regret to own Sony experia Z3 phone. Such unsupported **bleep**.
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