This has been happening a lot lately and is starting to get real annoying.... I can have full 4G signal on my phone, but I cannot use the Internet at all. I have a Samsung Galaxy S3. What makes this worse is you cannot turn off 4G, so basically, my data is completely unusable since the phone thinks that I have a perfect 4G connection. Anyone else experience these kind of symptoms? I'm really considering calling Verizon and complaining... I just hate being on the phone with them though, cause it tends to take a long time and nothing comes of it.