NETGEAR FVS336Gv3 Reference Manual page 433

ProSAFE Dual WAN Gigabit WAN SSL VPN Firewall FVS336Gv3
7. Enter the settings as described in the following table.
WARNING:
Do not enter an existing portal layout name in the Portal Layout
Name field; otherwise, the SSL VPN Wizard fails when you attempt
to apply the settings.
Set Up Virtual Private Networking with SSL Connections
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