No longer able to play Roblox on my Ipad. Need new Trouble Shooting Hints!

Up until about a month ago I played Roblox on my home internet and have for several years. But all of a sudden it quit on any ipad!! I get to Joining server page and Roblox Square will not turn. Hotspot from phone will play it(different internet). All specs exceed recommended requirements. Done many, many troubleshoots. I need something else. I've called my ISP(who is a friend of mine) there is no block from there end. I can play it on my computer and android. Anyone???? Thanks!