[Q] wifi "limited connectivity" problem on Android

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http://forum.xda-developers.com – hey guys i've update my Sony Ericsson Live with Walkman to Android 4.0.4 (4.1.B.0.587) using Sony PC Companion After the update, I attempted to root my phone by using this Guide: talk.sonymobile.com/thread/41119 the phone was rooted successfully but now i have a serious problem. i cant connect to my router using WiFi. i've searched in google and find some Apps and some solution (in xda and other forums) to solve my problem but the problem still not resolved :( i've used following Apps: WiFi Manager FXR WiFi fix and rescue i'm also restart my router and check other routers but just (HowTos)