De Laurentiis spoke to the players in midweek with the team struggling for form.
He said: "We did all the right things to overcome these difficulties. It was very important that President De Laurentiis visited us this week in a wonderful and relaxed meeting. He also came to see us last year during a difficult time and gave the lads the confidence to turn things around.
"The union between the team and the club is what gave us strength over the years and will continue to do so in future.
"In my career I have fought for safety and for the top of the table. The situation we are in now is much more positive than many others I've experienced, both at Napoli and elsewhere."