vpn wireguard Tunnel mit W11 client

[quinti]

Hallo,
ich habe einen wireguard server in einem proxmox LXC
Nutze ihn seit langem mit meinem Handy
Möchte nun auch mit meinem laptop einen Tunnel aufbauen.
Klappt aber leider nicht:

2025-10-25 22:09:48.868202: [TUN] [lenovo2] Using WireGuardNT/0.10
2025-10-25 22:09:48.868928: [TUN] [lenovo2] Enabling firewall rules
2025-10-25 22:09:48.784734: [TUN] [lenovo2] Interface created
2025-10-25 22:09:48.873961: [TUN] [lenovo2] Dropping privileges
2025-10-25 22:09:48.874475: [TUN] [lenovo2] Setting interface configuration
2025-10-25 22:09:48.875001: [TUN] [lenovo2] Peer 1 created
2025-10-25 22:09:48.881205: [TUN] [lenovo2] Monitoring MTU of default v6 routes
2025-10-25 22:09:48.875526: [TUN] [lenovo2] Sending keepalive packet to peer 1 (x.x.x.x:51820)
2025-10-25 22:09:48.875526: [TUN] [lenovo2] Sending handshake initiation to peer 1 (x.x.x.x:51820)
2025-10-25 22:09:48.881205: [TUN] [lenovo2] Interface up
2025-10-25 22:09:48.962349: [TUN] [lenovo2] Setting device v6 addresses
2025-10-25 22:09:48.966854: [TUN] [lenovo2] Monitoring MTU of default v4 routes
2025-10-25 22:09:48.991050: [TUN] [lenovo2] Setting device v4 addresses
2025-10-25 22:09:49.059898: [TUN] [lenovo2] Startup complete
2025-10-25 22:09:53.936597: [TUN] [lenovo2] Handshake for peer 1 (x.x.x.x:51820) did not complete after 5 seconds, retrying (try 2)
2025-10-25 22:09:53.938673: [TUN] [lenovo2] Sending handshake initiation to peer 1 (x.x.x.x:51820)
2025-10-25 22:09:59.109953: [TUN] [lenovo2] Handshake for peer 1 (x.x.x.x:51820) did not complete after 5 seconds, retrying (try 2)
2025-10-25 22:09:59.109953: [TUN] [lenovo2] Sending handshake initiation to peer 1 (x.x.x.x:51820)

firewall ausschalten hilft leider nicht
Weiss jemand Rat?