Samsung Galaxy S8+ phone and RBR50

With the most recent firmware loaded on the router and satellite I have the exact same problem with my Samsung Galaxy S8+ phone and  RBR50. I'm not sure precisely when it began, but it most likely followed one of the most recent phone upgrades. I'm not sure if any of the recent phone updates including ones for Bixby caused the problem. When I phoned Samsung, they advised me to reset the phone, reset the routers, and attempt all other available resets, including the Safe mode, but nothing worked. It must be something unique to  because I don't experience any problems with wireless connections while using other wireless routers, such at work or when visiting friends. TinyTask Pro