Windows 10: AlwaysOn VPN IKEv2 issues on shared connection

Hi,


we have some users that have issues connecting to the AlwaysOn VPN.


This only seems to occur to couples that work at the same company.


Monitored the firewall in front of our VPN, because I thought it would be the NAT of ESP proto 50 causing the issues, but there's no ESP traffic coming in at all.


So did some packet capturing and noticed the VPN client uses source ports 500/4500 and not ephemeral ports for the source.


My suspicion is that the NAT routers at least of them have simply use the same source port for the NAT and UDP not having a state, only the first one to connect will have a VPN as the router simply doesn't know where to return the return traffic.


Anyone know if it's possible to make the VPN client use ephemeral or at least different ports for the source? I see no reason to fix the source ports to 500/4500 as well. Having it use ephemeral/different source ports should probably resolve this just fine.

:)

 

A problem of Windows 10 VPN (Ikev2) connection

I tried to use ikev2 VPN on my windows 10 laptop, and connected successfully (at least it showed "connected"). However, when I checked my IP on google, it suggested that it didn't connect me to the VPN server at all. And other methods also proved that my
laptop didn't get access to the Internet via ikev2 VPN.

So are there anyone who also meet the same problem? Is it a bug on windows 10, or just something I do is wrong?

 

Issues connecting to an IKEv2 VPN "The parameter is incorrect"

I've set up a VPN using StrongSwan software on a DigitalOcean server.
I used this guide here :How to Set Up an IKEv2 VPN Server with StrongSwan on Ubuntu 16.04 | DigitalOcean;

The server has no issues, the ufw rules, ipsec config and StrongSwan config are all followed exactly as the tutorial shows.

Whenever I click connect on Windows 10, via the control panel VPN section, it returns the message "Can't connec to VPN" "The parameter is incorrect".

The VPN is IKEv2

 

Ikev2 VPN Internal authentication error

Hi everyone,
I have windows 10 pro 20H2,
I have a problem with my Nordvpn protocal IKev2/IPsec as you see in screenshot.





Sometimes when I want to connect with Ikev2 it gives error named: Internal authentication error. But just after using browser or restarting pc ,the error get fixed and when I connect it then it connected (see picture).



I tried IKev2 of protonvpn free by installing its certificate and its work fine when ever I connect it,it always connect but nordvpn not. I tried connecting nordvpn just after disconnecting nordvpn but no success.

I also tried different locations & countries but all have same issue.

Please tell me why there is authentication error ,how I fix it and whether its windows ikev2 problem or nordvpn ,I followed their full tutorial to install ikev2 from nordvpn and this problem occur everytime even after clean install windows so I have to wait sometime before successfully connecting to VPN