Failed To Connect To Instance

I am receiving several errors

While trying to load the client I get an error unable to connect to patching server.

After several attempts I get in and I get am error saying I cannot connect to login server.

This has been happening for 2-3 days.

Today when i try to join an instance it says Failed To Connect To Instance and then boots me from the game.

Essentially nothing has changed on my end and has gone from a perfectly playable enjoyable experience to unplayable.

Please Help.