On Tue, 12 Jul 2022, Mirsad Goran Todorovac wrote:
We have lost VPN connectivity since we introduced IPv6, I suppose.
The problem is that MS VPN client has IPv6 preference.
The Windows 10 client reports in evtlog:
"The user SYSTEM dialed a connection named GRF IKEv2 magrf which has failed.
The error code returned on failure is 809."
Try enabling tracing that gives you more detailed IPsec/IKEv2 logs:
https://serverfault.com/questions/758590/enable-ike-tracing-on-windows-10-vpn
Paul
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