the MR6400 is not the VPN endpoint, the Mac is. The VPN client apparently successfully syncs to the server but then no packets appear to be able to transit over the VPN - ping over ipv4, dns lookup...

Model : Hardware Version : Firmware Version : ISP : I have a MR6400 v2 flashed to latest firmware (TL-MR6400(EU)_V2_170912). This firmware says that it fixes a ipsec VPN issue. It works fine without...