Whenever I try to join my realm it just keeps saying connecting to realm unless i put on hotspot shield vpn the other one I tried using didnt work

Whenever I try to play my realm it just says connecting to realm unless I connect to hotspot shield which has a limit also I cant join servers it says failed to synthesize or authorize something like that. also whenever I change my skin it goes back to Alex when I join my singleplayer world. I also tried checking if java was being blocked but I couldn't find the application all I could see when I was looking at my blocked and unblocked apps was Minecraft windows 10 edition.