I have a Samsung 22 ultra and a few days ago my phone automatically updated the system to the 6.1.  Ever since then I have had issues with my phone not having data. I have tried going in airplane mode, restarting my phone, and even scanning for virus. My fiance has a Samsung but it has not updated to the 6.1 yet. My fiance can sit right beside me and have no issues with internet/data, but my data will go in and out and I can't load apps or look anything up on the internet. Is there a fix to this?