Minecraft Bedrock Edition Joinable Realms are not working. I keep getting the message...

Minecraft Bedrock Edition Joinable Realms are not working. I keep getting the message, "Failed attempt to join realm. Please try again later." This has now been going on for 2 days. I was in the game playing on my friend's realm when my ISP did an update and I lost connection. When returning to the game I was unable to access it. I tried all 3 different realms my friends have, and I can only access 1 of 3 of my friends realms. I want to return to the realm I was playing in before the ISP ran their update but cannot get in.

:)