SKype Cannot sing in and cannot connect to skype server solution?

I had meet some problem with skype app.
but i found some solution for that too...

problem:
1.Skype can not sing in.
2.Skype cannot connect to Skype server because your internet connection .
3.Skype error profile login.

solution is.
1.Delete old application data of Skype folder by run--->%appdata%  and find folder Skype---after folder name of user sing in.--rename it to other.
2. Update Skype to latest version
3.reset internet option in control panel.


thank