Hi,
I have problem in version 6.44.1 with L2TP/IPSEC
I configured vpn server behind NAT (port forward), when i want to use L2TP/IPSEC on windows i have problem (error 809) i searched in internet and i found i must to change registry on windows but i don’t want to change registry on windows because i have 200 client.
I don’t know why on IOS (APPLE), ANDROID, LINUX i can use this L2TP/IPSEC , but i cant run on windows form other networks.
when i used internet from mikrotik in local everything its ok but when i want to use other network and connect to this vpn server from windows i can’t, but all other devices (IOS,ANDROID,LINUX) working without any problems!!!
forwarded on internet modem these ports: UDP 4500,1701,500
please tell me what i need to do.
no one can’t answer ???
As You already found this is Windows problem. You can’t solve it another way, only patching every Windows client.
seriously but i have another router behind NAT too but i haven’t any problem on this version of router(6.38.5) but how can i fix it…
its not impossible without any way
if any one know that please reply this post because its very important for me!
https://support.microsoft.com/en-gb/help/926179/how-to-configure-an-l2tp-ipsec-server-behind-a-nat-t-device-in-windows
Please read and apply, Windows by default not support nat traversal
I also had trouble with L2TP/IPsec server behind NAT.
Modifying the registry on a Windows 10 system solved the issue for me.