I've successfully used remote rig for three years in all configurations. IC7100, laptop, and most often my android phone. The system works fine with my nano app on the Pixel3, but recently it will not work with the control head and wifi.
I normally use the control head via wifi, usually with my Verizon cellphone on wifi hotspot. This has been a great option for mobile operation. I hadn't used the unit in a few months, and now it will not connect to wifi. It scans and identifies the hotspot when using the setup manager, and sees my hotspot, my home wifi network as well as printers, etc. But, it will not connect to the remote ddns server using the Verizon hotspot, nor will it connect to my local wifi using 192.168.1.228. The system works fine when I connect the control head via ethernet to the router, which is also connected to the base unit. 192.168.1.227 connecting to 192.168.1.228 (base unit). I think I've tested all options. Suggestions would be appreciated.