Hi, i have two apple tv with me, 1 is the 2nd gen and the 2nd is the 3rd gen. now after the katest upgrade none of my devices like iphone ipad is able airplay with my 2nd gen apple tv!

Hi, i have two apple tv with me, 1 is the 2nd gen and the 2nd is the 3rd gen. now after the latest upgrade none of my devices like iphone ipad is able airplay with my 2nd gen apple tv! But the airplay is ok with my 3rd gen apple tv

Also the apple tv app doesn't recognize any of my apple tv's

I have reset my apple tv and WiFi router many times and also have rebooted my devices like iphone ipad many times, but no luck at all

Please help!!