Whats up with MultiBit HD suddenly no longer connecting?
"java.net.ConnectException: Connection refused: connect"
For these kinds of problems it's best to post in the issue database and continue updates there. It's much easier for us to work with and provides better search options for people with similar issues looking for a solution later.
Here's the link to the related issue: https://github.com/bitcoin-solutions/multibit-hd/issues/697
Okay i read both emplacement and will add all further information to https://github.com/bitcoin-solutions/multibit-hd/issues/697
Edit for search engine:
The issue was Tor related.
Disable Tor. For now.