Suddenly My Roku is Losing wifi connection

My wifi connection has always been stable on my Roku until this weekend. I have LTE Home Internet and have not made any changes to the placement of the box. Now I am constantly losing wifi connection. My laptop and phone do not lose connection but Roku does. When I test signal strength it says strong on the Roku. Any ideas about what I can do? I recently dropped Dish and went with a streaming package so this is a big problem.