Get online support
@joevelardi . When you login to the router, the firmware version is displayed at the bottom of the screen.
Build 200810 is given as the latest version by the moderators (although a few other users have reported higher build numbers). Updates are only available from TPG. Downloading a new firmware might clear all settings, unless their procedure saves and restores settings.
This build removes the VPN server feature from the Archer, although NAS supports this if needed.
These ar my build details
Firmware Version:1.1.0 0.9.1 v5006.0 Build 200826 Rel.77218n which supercedes the version you specified.
@joevelardi . As I understand it, the 1.1.0.0.9.1 means a FTTB connection; must be some slight difference. My FTTC router has 0.1.0.0.9.1. I'd wait to see answer from Synology before tackling the router.