I have been having broadband problems recently, so I set my iPhone 8 up as a hotspot and connected my iPad to the internet via the mobile hotspot. One thing I noticed was that when I turned off the iPad and then a little later used it again I had a long delay to reconnect to the hotspot. I even went to disabling/ enabling the hotspot to get the iPad to see it. As my broadband has gone very slow again today, and not I think due to anything to do with me, I enabled the hotspot. Again the same delay to see the hotspot, so a little search produced the solution on imore. My hotspot’s name is automatically set by the iPhone as Nick’s hotspot. Removing the apostrophe, or in fact in my case I changed the Nick’s to my initials, it now sees the hotspot instantly. (Settings, general, about, name) I hope that this helps others.