Skype for Business is a popular video conferencing tool used in organizations. But sometimes like any other Application there are Issues! And one of the Issues is that a user see’s, is a contact offline even though he/she is actually online.
One of the first things which might come to your mind is that one of the users may have blocked the other user. That may be true but that is not always the case. The guy at the other and might be wondering why this person never shows up ?
There is a way in which it can be resolved. It is like this, each of the users have to delete the other person from the contact list. Once deleted close Skype and relaunch it. Once it relaunches, add each other back again and it should work.