I have had major issues on ios 11 with iphone X where my phone rings and calls only show after ringing around 3 times. This is a constant issue, temp fix is to restart and comes back again. I have reset network settings as well as settings, still nothing. The last thing I want to do is setup as new cause I do not want to lose all my text. I feel ios 11 is so slow still and so far from great considering I was using ios 10 the other day on an older iphone 6s I never upgraded and it was so quick and snappy. Even when I delete multiple calls on iOS 11 it kicks me out back to the home screen and this happens a lot on different tasks throughout the OS. Is anyone else experiencing these issues? How can I fix this?