Guys even if it says "can't connect to chat" - message your contacts anyway. Those messages do go through. The backends are more or less merged with Skype-Messenger and hence your chat goes to cloud and whenever server reconnects it pushes out the messages to the other person. It may not go instantly but in a few seconds it will get delivered. Don't worry about what it says. However, if you do not get your contact list refreshed - you may have to initiate chat using People hub. But if you already have a thread, just write in that thread irrespective of chat status.