For the past few days this has been happening, I have connection bars (4G 80% of the time) but when I go on the web,YouTube, etc. Anything involving needing connection it won't connect. It's exactly like logging into a wifi connection that doesn't let you connect to anything. This is on and off, sometimes I'll be able to browse the web, go on YouTube like I'm supposed to, then I'll go back to my phone and when I try to browse the web or load anything that requires connection I get the "error can't connect" popup. Why is my connection going on and off even though it shows that I have bars? The only thing my phone let's me do when it isn't connecting to anything and requires connection is texting.