After the latest Android update my Wifi calling stopped working despite being ON. My phone simply refused to make calls through WI-fi. Signal at my home is terrible so all the calls are going straight to voicemail. A day before the update I had no problem with WiFi calling and then the next day my phone refused to make WiFi calls. After I downloaded the App Samsung band selection that allows you to make calls using only WiFi and deactivating cellular signal, on my first call I was prompt with the message "connect to WiFi to make a call" of course I was connected to a functioning WiFi at my home. I changed the band to 2.4 from 5 and still same message. I used friends WiFi etc and still same message. Somehow my phone despite being connected on WiFi with properly functioning internet when you attempt to make a call doesn't recognize that the phone is already connected to WiFi. Any ideas? HELP!!!