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At the moment I'm having trouble setting up vpn passthrough on my new Netgear R6400 with the latest firmware.
When setting up the port forwarding for the L2TP vpn solution (udp ports 1723, 500 and 4500) to my Synology NAS, which did work with my old Cisco router, I'm unable to connect from outside the network. When connected to the wireless lan inside the network, I am able to connect to the vpn server on my Synology. I also enabled the ping option for WAN on my Netgear R6400, but this neighter solved my problem.
The OpenVPN option on the Netgear is not supporting mobile devices yet, so this solution is no option...
Is there anyone having a solution which might solve my problem?
I added port 1701, but without any luck. I also found the manual for troubleshooting vpn passthrough, but unfortunately after following all tips on this page, the problem still exists.
I will try to setup vps passthrough with the older firmware, hopefully this will fix my issue. I'll let you know...
I just tested with an old firmware version, after which I had to forward the specific ports for vpn again and finally it worked! Probably there is some issue with port forwarding in the latest firmware version, but the firmware version with which vpn forwarding is working fine right now is version V1.0.1.6_1.0.4!
