I just want to say thank you for your help. My laptop is working very well after three days of dealing with it.
I had to unisntall all components of Total Protection with the McAfee removal tool , then install again and reboot.
I know it sound wierd, but something happen during the installation process at the first time when I accesed using my wireless conecction. Firewall ??? I had to wired my laptop to the router.
Thank you again
You are welcome !