Hmm... Let's see... 4 VPS's from different providers, located at various locations all over the world... Nothing has changed and ALL of them are having a problem... Hmm. You must be right! You're working so the rest of the world must be wrong!
Everything should be working fine... All servers are up and running fine, no real changes to code have been made over the last week other than updating of coindaemons (which normally causes a quick disconnect/reconnect, normally less than a second or two).