When the Norman Personal Firewall in Norman Security Suite 9.x/10.x is active it is not possible to contact/query other computers using ping or the tracert utilities.
The problem is currently being investigated. Currently the only workaround is to temporarily deactivate the Norman Personal Firewall prior to using these commands. This can be done from the Norman tray icon.
13/12/13: And update to fix this problem has been released over Internet Update