Hmm Skype is currently experiencing some connectivity issues: http://heartbeat.skype.com/2015/09/skype_presence_issues.html "We have detected an issue that is affecting Skype in a number of ways. If you're signed in to Skype, you will not be able to change your status and your contacts will all show as offline even if they are online. As a result, you won’t be able to start Skype calls to them.. A small number of messages to group chats are not being delivered, but in most cases you can still instant message your contacts.. If you aren’t signed in to Skype, you may be experiencing difficulty when attempting to sign in. Any changes to your Skype account such as your Credit balance or your profile details might take a little while to be displayed.. You may also have difficulty loading web pages on the Skype Community. For that reason, please check back here for future updates."