Please check your Routers WiFi settings also. What is the frequency, Mode b/g/n, MAC of phone blocked. You may reset WiFi Router to test out problems. Google is the best teacher. Please do it only if you have networking knowledge or better to call your ISP.
Best of Luck.
Sent from my Xolo Q1010i (Lenovo S930 ROM) using XDA Free mobile app
My Devices :
Android Daily Driver : Xolo Q1010i
Old Device : LG Optimus L7(P705) Recycled.
Fun Device : Nokia N900 (Inspired me to be on XDA)
Say Thanks if you like....As I always do...!