@PSmith . Version 2 relates to the hardware version. The firmware version is given like:
Firmware Version:0.1.0 0.9.1 v5006.0 Build 200810 Rel.53181n
The latest version build 200810 doesn't have the vpn function. Previous build 190228 has 3 vpn methods.
The latest firmware requires you to put vpn software on a computer or replace the VR1600 with some other router.