I wrote to support(support@tp-link.com) and they sent me the firmware MR6400_voip_beta_2016-09-06_15.01.35 I installed it after restoring the Factory Defaults and everything works:VPN and VOIP :cool:

did you install it on the v1 version? have you already had v2 versions?

pedrobotin wrote I solved the problem with TL-MR6400(EU)_V2_170912 http://www.tp-link.es/download/TL-MR6400.html#Firmware Fixed the bug that IPSec VPN data cannot be passed. Fecha de Publicación:...