I have a strange problem that I don't understand. The answer is probably simple, and has been asked before, but I couldn't find it. The symbol in the upper left hand corner of my iPad Pro that indicates the strength of the wireless connection usually has the name of my ISP next to it. Recently it has been showing "no service", even though the symbol indicates that it is connected at full strength (all three lines lit). The WiFi settings indicate that I am connected to my router, and I can access the Internet, both through my iPad, and through my desktop, which is connected to the same router by a cable. In other words, everything is working fine, except for the "no service" message. I didn't let it bother me, since everything worked, until I tried to connect a wireless printer to the router, and it wouldn't connect. I'm wondering whether the problem with the printer might be related to the "no service" message on my iPad. Does anyone have any ideas on what may be causing the message?