I just updated my RT6600ax. The L2TP VPN connection incoming from external device (RT1900ac) to my VPN Plus Server running on my RT6600ax works again.SRM Update - Version: 1.3.1-9346 Update 12
(2024-10-28) Important Note The update will be available for selected regions within the following weeks, although the release time in each region may vary slightly. Fixed Issues Fixed the issue that could prevent users from connecting to the VPN server on SRM using L2TP and PPTP VPN...www.synoforum.com