Hi linvi. Yesterday I send the app to a friend an it works fine. So, in conclusion, Tweetinvi is fine and the second PC is crazy, hahahaha. Sorry for that. I´m writing to you just to let you now. If you are agree, i,ll keep this thread open, because i still searching the reasons. ¿Maybe a proxy problem can return a 401 error?
Regards...
Regards...