One option for alexa that helped me!
My Alexa stopped working with Dish a month ago; no one could fix it adn was told to call Amazon for support. Never had the time, but earthlogix gave a suggestion that it may be Alexa +, so I gave it a try and turned it off. I then disconnected from Dish and started the setup again; IT WORKED! I got all my functionality back and set them up; what if I go back to Plus? I know a fix, so what do I have to lose? I switched it back on, and other than Alexa not being able to say "Dish" it all works perfectly (so far)
I am unsure if this will help anyone else, but it worked for me, so I needed to share.