Existing Connection Closed by the Remote Host (Only on Minecraft Realms)

Hello, today I just purchased my Minecraft Realm to play together with my friends but I keep disconnecting from server like after 30 seconds. They can play on my realm. This issue only appears in Minecraft Realms. I can play on community servers.

 

I've already tried any solution on the internet like firewall settings, forwarding/opening ports, resetting router settings to default, using googleDNS and re-installing the game and java, chang'ng java settings from control panel etc.