isa servers only pinging to hosts inside my university, but dont pinging to yahoo, hotmail, altavista and so. isa dont pinging outside my network. the browser in the machine with isa server dont navigate but if i uninstall isa server i can navigate perfectly. in this moment 5 hours ago i installed isa and the clients is accessing to internet very well. bye anibal z.c. Are you a Yahoo? Turn your email into a secure Online Office 100% Ad free! http://www.norada.com/office