My wife and I are both having a problem with Siri dictation since updating to iOS 11 on our iPhone 7's . It more often than not doesn't work at all. I updated to iOS 11.0.1 hasn't helped. I tried erasing network preferences, cycling dictation on and off, and following all the suggested steps on several internet sites, but it hasn't helped. Anyone else having this problem? Other ideas on how to fix it?