

On the TCP/IP tab (second tab from top-left), near the middle of the window for the Configure IPv6 settings, click the drop-down list and change it from Automatically to Link-local only.Click the Advanced. button near the lower-right corner of the window.Click Wi-Fi in the list of network services along the left side of the window.Open System Preferences then select Network (or click on the Wi-Fi icon on the menu bar near the upper-right of your display, and then select “Open Network Preferences…” from the drop-down list.).Note, IPv6 is not used for most of North America so it can be turned off for Wi-Fi on the MacBook unless traveling outside of North America. A VPN connection will not be established.”ĭisabling IPv6 for Wi-Fi has fixed this issue for several people. When attempting to launch Cisco An圜onnect they will see a prompt stating “/!\ The VPN client was unable to successfully verify the IP forwarding table modifications. Some Mac OSX users who are fully up to date with the latest version of Mac OSX and the latest version of Cisco An圜onnect VPN are still having issues trying to make a VPN connection from their home network. I was starting to fret I had a $4000 paperweight on my hands. HUGE thank you to the University of Waterloo for sharing this. I just found this solution and it worked for me.
