i connect my phone to internet via wifi, but it is shown it is connected but it is not, fail to connect, can anyone help me?

if i enable data transfer, will it charge my phone credit? thanks, i need full advice

What you mean by other device? by the way, if u chg other hotspot, is your date traffic on? cause I really don't know how to access internet smoothly...

thanks very much, u provided a very valuable info to me