Yesterday, I could go onto my friend's realm on my pc however, the day before and today, any attempt to connect to multiplayer results in an error message during the "Loading resource packs" phase of the loading screen: "Unable to connect to the world. Please check your connection to the internet and try again."
I have tried every fix that I can think of however nothing seems to work. I can join fine on xbox so I know that it's nothing to do with my connection to the internet as both devices are connected to the same network.

If I attempt to connect to a server, I am told that my connection has timed out.

Any help?