+ 0 Votes Similar problem chuckbusch 7 years ago My toshiba just started a problem that logs onto LAN correctly, accesses all other computers on the LAN, but refuses to respond to other computers. Need to share files but the toshiba refuses to respond to pings or be seen from others on the net. Have tried everything obvious (firewalls, file sharing setup, etc) nothing works. Same wireless or ethernet. + 0 Votes Cisco VPN Installed? lance2010 7 years ago I had a similar problem myself, and it turned out to be the Cisco VPN software that was installed.I tried disabling the Windows firewall, etc, but it wasn't until I uninstalled the VPN software that anything worked. Even without the Cisco software running, my machine still wouldn't accept connections or respond to pings.