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

[azzam]

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"

PS:
i did factory reset several time but no solve .. it's ice cream version

plzzz guys help me