Why isn't my Internet working?

I just got an iPhone 5 and am connected to Simple Mobile. I can connect to Wi-Fi here at my home but when I go outside I should still be able to use my 3G data, but I can't, nothing loads. This is very frustrating because I can't google things or messages friends over internet things or do anything internet wise without being at home, why isn't my internet working and what can I do to fix it? And no I haven't used up all my data because I got my phone 2 days ago and it hasn't been using its 3G properly since the moment I got it, please help me! Xx

Have you rang the provider to register your mobile? When I got my new Samsung Galaxy S4, even though I gave my details in the shop, the internet didn't work for about a week. It was only when I called them that they stated I needed to register, and within 48 hours the internet was then switched on for me.

Change your password and reconnect it

  • Why isn't the Internet on my iPhone 5 working? I just got the iPhone 5 with straight talk. If I have an unlimited data plan why is it that my internet only works when connected to Wi-Fi and not off of my network
  • Why isn't my Internet working on my iPhone? Its been going on for around 2 months now, and my Internet won't work! It only works on 3G (which costs money). I reseted the network thing, turned it to airplane mode then back to the internet etc. It still won't work for some reason. ---------------------------- My iPhone is an 4s iOS is 7.0.4 Other internets work, but not this one that I mainly use.
  • Why isn't my internet on my laptop working? DNS server? My internet on the home computer is working and my iPhone is working as well. On my laptop it says that I'm connected to my network. However, when I try to open up Chrome or Firefox, it won't connect to any pages. Chrome keeps saying that DNS server isn't available. Does anyone know hwo to help?
  • Why isn't my GiffGaff PAYG Internet working in my IPhone 3GS? Basically I got an Iphone 3GS and the i put my giffgaff sim in it. I topped it up £15 and got the 400 mins and Unlimited texts and Internet package as i always do. Now when i leave my house (disconnecting the Wi-Fi) my texts and Phone calls are working but my internet isn't connecting. Is there a way to fix this?