VPN L2TP with IPSEC

Hi,
I follow instructions like the URL :



but I can not connect to the VPN. (I tested with 2 other PC from the internet : windows 10 and windows sv 2008)

Untitled
How can I troubleshoot this issue ?
thanks !!!
Peplink 580.

The password is in the “domain” field instead of the “password” field in your screenshot.
This seems to match the error description.

2 Likes

Yes, I see, but I entered the right password in the password field.
I have new trouble


I tested this pc with another VPN (IBM3850 , this vpn server is the draytek vigor2920, l2tp ipsec) , it connected.

I test with windows server 2008 (anorther PC).
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Hi Nguyenhp,

To be able to connect using L2TPover IPSec make sure the following ports are not blocked :UDP 500. UDP 5500 and UDP 1701.
Disabling your firewall temporarily might help?

If you stil encounter problems, you can try using an OpenVPN connection instead: