Support i have problem with wifi connection ...help me plz

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http://androidforums.com – hi guys ... i'm new user with Android my phone is htc one v i face problem when i turn on wifi it takes a long time without any connection and it can't find any networks in the first time it was so good wifi connection but now "no wifi" :confused: PS: i did factory reset several time but no solve .. it's ice cream version plzzz guys help me :( (General)