From time to time and for no apparent reason, I get the following message when I try to connect via VPN to my network: "The VPN server did not respond." The only way to resolve this error is to power-cycle the router.
The instructions I followed to the letter was from this D-Link user guide
http://www.dlink.ua/sites/default/files/dsr/How%20to%20establish%20IPsec%20VPN%20Tunnel%20between%20D-Link%20DSR%20Router%20and%20iPhone%20iOS.pdf
Has anyone experienced this issue before and does anyone know how to resolve it?