@Tony thanks, I used an unzip software which worked weird way. Change software, everything works!

@Tony When I unpack the beta firmware I get this When I use the router.bin file to update the firmware on the router I get this

@Tony I just tried but the file "router.bin" doesn't work, Is there another way to update the MR6400 firmaware? I go into firmware upgrade and insert the file "router.bin" after unpacking the file...

Dear all, I can't get connection when I run Nordvpn client, IKEv2 protocol. An old thread in this forum suggests to download a beta firmware "MR6400_voip_beta_2016-09-06_15.01.35_1474602142560j" but...