Can't join any server

Hey Minecraft team ! I m S4TUR0_G0J0 a Minecraft bedrock player I love to play Minecraft from past 2 years. I mainly play on public servers , but from when I changed my device from OppoA3s to Realme 8 , I am not able to join any server. Whenever I try to join it take some time and after show "Unable to connect" and "Disconnect from server" I also try to change my network but that didn't work I tried many methods like deleting and installing Minecraft to get latest version but that didn't work. I want you guys to help me solve this problem as fast as your team can.

Thank you