After the recent security update for Android 11 my Pixel 4a is unable to connect to a nearby US Cellular tower. I live in a rural area and for the past several years I have been able to use the agreement between Tmobile and US Cellular to provide cell service in rural areas. Before the update this was working fine and it works fine on my wife’s Iphone 11 but since the update I have not been able to access the US C signal. I spent an hour with aTmobile tech and we were able to restore services temporarily by reseting the phone to factory settings. After going into the city and connecting to a TMobile tower I was unable to connect to the US Cellular signal upon returning home. Any suggestions on how to get it working again?