[GH-ISSUE #1522] NetworkManager 1.22 changes wireguard listen port #2586

New Issue

saavagebueno · 2026-08-05T00:47:56-04:00

saavagebueno commented

2026-08-05 00:47:56 -04:00

Originally created by @KlausPopp on GitHub (Feb 2, 2024).
Original GitHub issue: https://github.com/netbirdio/netbird/issues/1522

Describe the problem

There are problems with netbird 0.25.5 in combination with NetworkManager 1.22.
The problem is: When netbird brings the wt0 device up, it assigns the listen port to the value in /etc/netbird/config.json usually 51820. Now, NetworkManager is triggered and recognizes a new wireguard device and it wants to configure it. The result is that it assigns a new, random port number to wt0. However, netbird is not aware of that change and so the other peers are not informed about the new port number. The result is that the wireguard connection isn't working at all.

To Reproduce

Use netbird 0.25.5 and NetworkManager 1.22.
Ensure NetworkManager and Netbird Service is started
netbird up
Get the wt0 listen port by entering "wg"
Result: ListenPort is different than in /etc/netbird/config.json
Enter netbird status -d
Result: No Wireguard handshake for most peers

Expected behavior

wt0 Listen port should be the same as in /etc/netbird/config.json

Are you using NetBird Cloud?

yes

NetBird version

0.25.5

Additional context

Add any other context about the problem here.

Linux Kernel 5.4.193 with patches, out-of-tree wireguard module

Originally created by @KlausPopp on GitHub (Feb 2, 2024). Original GitHub issue: https://github.com/netbirdio/netbird/issues/1522 **Describe the problem** There are problems with netbird 0.25.5 in combination with NetworkManager 1.22. The problem is: When netbird brings the wt0 device up, it assigns the listen port to the value in /etc/netbird/config.json usually 51820. Now, NetworkManager is triggered and recognizes a new wireguard device and it wants to configure it. The result is that it assigns a new, random port number to wt0. However, netbird is not aware of that change and so the other peers are not informed about the new port number. The result is that the wireguard connection isn't working at all. **To Reproduce** - Use netbird 0.25.5 and NetworkManager 1.22. - Ensure NetworkManager and Netbird Service is started - netbird up - Get the wt0 listen port by entering "wg" - Result: ListenPort is different than in `/etc/netbird/config.json` - Enter `netbird status -d` - Result: No Wireguard handshake for most peers **Expected behavior** wt0 Listen port should be the same as in `/etc/netbird/config.json` **Are you using NetBird Cloud?** yes **NetBird version** 0.25.5 **Additional context** Add any other context about the problem here. Linux Kernel 5.4.193 with patches, out-of-tree wireguard module

saavagebueno added the feature-request system-compatibility-issue config-issue labels 2026-08-05 00:47:56 -04:00

saavagebueno referenced this issue

2026-08-05 01:02:40 -04:00

[GH-ISSUE #2586] Azure AD documentation error? #5337

saavagebueno referenced this issue

2026-08-05 01:03:35 -04:00

[GH-ISSUE #2586] Azure AD documentation error? #5502

saavagebueno referenced this issue

2026-08-05 01:03:37 -04:00

[GH-ISSUE #2586] Azure AD documentation error? #5509

saavagebueno referenced this issue

2026-08-05 01:03:41 -04:00

[GH-ISSUE #2586] Azure AD documentation error? #5519

saavagebueno referenced this issue

2026-08-05 01:03:48 -04:00

[GH-ISSUE #2586] Azure AD documentation error? #5540

saavagebueno referenced this issue

2026-08-05 01:03:50 -04:00

[GH-ISSUE #2586] Azure AD documentation error? #5550

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Reference: DYNR/netbird#2586