Problem with adding new contacts in Skype

Hi there, I just installed Skype. I am a new member to Skype. I logged on to Skype without any problem. I didn't add any contacts till now. When I am trying to add new contacts or getting Facebook contacts to Skype it is showing this error message "Check your internet connection". My internet connection is working fine. I checked my firewall settings and it allowed Skype. Please someone help me out on this issue. Thanks a lot guys!
