TP-Link Deco BE85 BE22000 Tri-Band 10G / 2.5G Whole Home 3-Piece Mesh System - Manual (Page 66)

63 * Features available in Deco may vary by model and software version. Deco availability may also vary by region or ISP.
(5) Enter the User name and Password you have set for the L2TP/IPSec
VPN server on your router, and click Connect.
(6) Click Close when the VPN connection is ready to use.