Onconnect recurring DNS unreachable notification #2306

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opened 2025-11-20 07:07:29 -05:00 by saavagebueno · 3 comments
Owner

Originally created by @tomashora on GitHub (Sep 24, 2025).

Describe the problem

After each connection, the DNS notification pops up multiple times. Sometimes it pops up only 2-3 times sometimes it almost newe stops so it's better do disable notification which has to be done while disconnected because the notification repeatedly covers the settings menu.

The private DNS server is reachable as a peer and distributed in group All so it may take some time for the DNS to be reachable.

To Reproduce

Steps to reproduce the behavior:

  1. Connect with enabled notifications
  2. DNS unrechable is displayed

Expected behavior

The DNS notification could be displayed after longer period.

Are you using NetBird Cloud?

Self-hosted

NetBird version

0.58.1

Is any other VPN software installed?

No

Debug output

1ddeb81b5637b00d27b906270508c117cf46cb4d0b768e79b281a23a281098c8/cbb6dae5-e28f-4388-8fdc-e4efb838cbde

Screenshots

Image

Additional context

Have you tried these troubleshooting steps?

  • Reviewed client troubleshooting (if applicable)
  • Checked for newer NetBird versions
  • Searched for similar issues on GitHub (including closed ones)
  • Restarted the NetBird client
  • Disabled other VPN software
  • Checked firewall settings
Originally created by @tomashora on GitHub (Sep 24, 2025). **Describe the problem** After each connection, the DNS notification pops up multiple times. Sometimes it pops up only 2-3 times sometimes it almost newe stops so it's better do disable notification which has to be done while disconnected because the notification repeatedly covers the settings menu. The private DNS server is reachable as a peer and distributed in group All so it may take some time for the DNS to be reachable. **To Reproduce** Steps to reproduce the behavior: 1. Connect with enabled notifications 2. DNS unrechable is displayed **Expected behavior** The DNS notification could be displayed after longer period. **Are you using NetBird Cloud?** Self-hosted **NetBird version** 0.58.1 **Is any other VPN software installed?** No **Debug output** 1ddeb81b5637b00d27b906270508c117cf46cb4d0b768e79b281a23a281098c8/cbb6dae5-e28f-4388-8fdc-e4efb838cbde **Screenshots** <img width="415" height="295" alt="Image" src="https://github.com/user-attachments/assets/da86b021-f7df-497a-adf3-15bd9bcc4568" /> **Additional context** **Have you tried these troubleshooting steps?** - [x] Reviewed [client troubleshooting](https://docs.netbird.io/how-to/troubleshooting-client) (if applicable) - [x] Checked for newer NetBird versions - [x] Searched for similar issues on GitHub (including closed ones) - [x] Restarted the NetBird client - [x] Disabled other VPN software - [x] Checked firewall settings
saavagebueno added the triage-needed label 2025-11-20 07:07:29 -05:00
Author
Owner

@tkloda commented on GitHub (Sep 24, 2025):

I can confirm this warning appears consistently across Linux, macOS, and Windows clients. It's generated upon every successful connection to the VPN.

The primary issue is the user confusion this causes. Although the warning is displayed, DNS resolution works perfectly, suggesting the warning is a false positive.

Could this be a race condition? It seems the warning may be triggered prematurely, before the DNS subsystem has fully initialized.

@tkloda commented on GitHub (Sep 24, 2025): I can confirm this warning appears consistently across Linux, macOS, and Windows clients. It's generated upon every successful connection to the VPN. The primary issue is the user confusion this causes. Although the warning is displayed, DNS resolution works perfectly, suggesting the warning is a false positive. Could this be a race condition? It seems the warning may be triggered prematurely, before the DNS subsystem has fully initialized.
Author
Owner

@Lirok228 commented on GitHub (Sep 26, 2025):

I can confirm I’m experiencing the same issue. The DNS servers do become reachable after a short period of time, but the client still shows the “DNS unreachable” warning.
Is there a way to either increase the TTL/grace period before triggering this warning, or are there any other recommended workarounds to mitigate the problem?

2025-09-26T22:50:59+03:00 WARN [request_id: d26cfaff] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintest.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 192.168.0.25:60741->192.168.102.105:53: i/o timeout
2025-09-26T22:50:59+03:00 WARN [request_id: 33482a54] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 192.168.0.25:61674->192.168.102.105:53: i/o timeout
2025-09-26T22:50:59+03:00 WARN [request_id: 6de4cd11] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.hrdoc.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 192.168.0.25:55347->192.168.102.105:53: i/o timeout
2025-09-26T22:50:59+03:00 WARN [request_id: 401f2cd9] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintest.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 192.168.0.25:62773->192.168.102.105:53: i/o timeout
2025-09-26T22:50:59+03:00 WARN [request_id: e2971d9b] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 192.168.0.25:54385->192.168.102.105:53: i/o timeout
2025-09-26T22:50:59+03:00 WARN [request_id: e693d6d2] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.hrdoc.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 192.168.0.25:55441->192.168.102.105:53: i/o timeout
2025-09-26T22:50:59+03:00 WARN [request_id: f91897af] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:54984->192.168.102.105:53: i/o timeout
2025-09-26T22:50:59+03:00 WARN [request_id: b6b4cdca] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.hrdoc.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:52787->192.168.102.105:53: i/o timeout
2025-09-26T22:50:59+03:00 WARN [request_id: a1c55e29] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintest.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:53591->192.168.102.105:53: i/o timeout
2025-09-26T22:51:00+03:00 WARN [request_id: 887da04b] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintest.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:52940->192.168.102.105:53: i/o timeout
2025-09-26T22:51:00+03:00 WARN [request_id: 187f1c12] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:61287->192.168.102.105:53: i/o timeout
2025-09-26T22:51:00+03:00 WARN [request_id: 4569e1e7] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.hrdoc.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:65473->192.168.102.105:53: i/o timeout
2025-09-26T22:51:00+03:00 INFO client/internal/dns/upstream.go:322: upstreams 192.168.102.105:53, 192.168.100.21:53, 192.168.100.146:53 are responsive again. Adding them back to system
2025-09-26T22:51:00+03:00 INFO client/internal/dns/upstream.go:322: upstreams 192.168.102.105:53, 192.168.100.21:53, 192.168.100.146:53 are responsive again. Adding them back to system
2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:278: added 1 match domains to the state. Domain list: 64.100.in-addr.arpa
2025-09-26T22:51:00+03:00 WARN [request_id: c41e253d] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.ru. after 2.001s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:52421->192.168.102.105:53: i/o timeout
2025-09-26T22:51:00+03:00 WARN [request_id: f62085bd] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintest.ru. after 2.001s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:55006->192.168.102.105:53: i/o timeout
2025-09-26T22:51:00+03:00 WARN [request_id: 09ec9fd9] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.hrdoc.ru. after 2.001s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:52469->192.168.102.105:53: i/o timeout
2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:265: added 5 search domains to the state. Domain list: bk.local mydomaintestrus.ru mydomaintest.ru mydomaintestrus.hrdoc.ru netbird.selfhosted
2025-09-26T22:51:00+03:00 INFO client/internal/dns/upstream.go:322: upstreams 192.168.102.105:53, 192.168.100.21:53, 192.168.100.146:53 are responsive again. Adding them back to system
2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:344: flushed DNS cache
2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:278: added 1 match domains to the state. Domain list: 64.100.in-addr.arpa
2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:265: added 5 search domains to the state. Domain list: bk.local mydomaintestrus.ru mydomaintest.ru mydomaintestrus.hrdoc.ru netbird.selfhosted
2025-09-26T22:51:00+03:00 WARN [request_id: 6f2af708] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:62990->192.168.102.105:53: i/o timeout
2025-09-26T22:51:00+03:00 WARN [request_id: e780999c] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintest.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:58051->192.168.102.105:53: i/o timeout
2025-09-26T22:51:00+03:00 WARN [request_id: 8c7446eb] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.hrdoc.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:55000->192.168.102.105:53: i/o timeout
2025-09-26T22:51:00+03:00 WARN [request_id: 0ac5142c] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=bird-t.mydomaintestrus.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:57519->192.168.102.105:53: i/o timeout
2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:344: flushed DNS cache
2025-09-26T22:51:00+03:00 INFO client/internal/dns/upstream.go:322: upstreams 192.168.102.105:53, 192.168.100.21:53, 192.168.100.146:53 are responsive again. Adding them back to system
2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:278: added 1 match domains to the state. Domain list: 64.100.in-addr.arpa
2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:265: added 5 search domains to the state. Domain list: bk.local mydomaintestrus.ru mydomaintest.ru mydomaintestrus.hrdoc.ru netbird.selfhosted
2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:344: flushed DNS cache
2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:278: added 1 match domains to the state. Domain list: 64.100.in-addr.arpa
2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:265: added 5 search domains to the state. Domain list: bk.local mydomaintestrus.ru mydomaintest.ru mydomaintestrus.hrdoc.ru netbird.selfhosted
2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:344: flushed DNS cache

@Lirok228 commented on GitHub (Sep 26, 2025): I can confirm I’m experiencing the same issue. The DNS servers do become reachable after a short period of time, but the client still shows the “DNS unreachable” warning. Is there a way to either increase the TTL/grace period before triggering this warning, or are there any other recommended workarounds to mitigate the problem? 2025-09-26T22:50:59+03:00 WARN [request_id: d26cfaff] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintest.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 192.168.0.25:60741->192.168.102.105:53: i/o timeout 2025-09-26T22:50:59+03:00 WARN [request_id: 33482a54] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 192.168.0.25:61674->192.168.102.105:53: i/o timeout 2025-09-26T22:50:59+03:00 WARN [request_id: 6de4cd11] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.hrdoc.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 192.168.0.25:55347->192.168.102.105:53: i/o timeout 2025-09-26T22:50:59+03:00 WARN [request_id: 401f2cd9] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintest.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 192.168.0.25:62773->192.168.102.105:53: i/o timeout 2025-09-26T22:50:59+03:00 WARN [request_id: e2971d9b] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 192.168.0.25:54385->192.168.102.105:53: i/o timeout 2025-09-26T22:50:59+03:00 WARN [request_id: e693d6d2] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.hrdoc.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 192.168.0.25:55441->192.168.102.105:53: i/o timeout 2025-09-26T22:50:59+03:00 WARN [request_id: f91897af] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:54984->192.168.102.105:53: i/o timeout 2025-09-26T22:50:59+03:00 WARN [request_id: b6b4cdca] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.hrdoc.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:52787->192.168.102.105:53: i/o timeout 2025-09-26T22:50:59+03:00 WARN [request_id: a1c55e29] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintest.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:53591->192.168.102.105:53: i/o timeout 2025-09-26T22:51:00+03:00 WARN [request_id: 887da04b] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintest.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:52940->192.168.102.105:53: i/o timeout 2025-09-26T22:51:00+03:00 WARN [request_id: 187f1c12] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:61287->192.168.102.105:53: i/o timeout 2025-09-26T22:51:00+03:00 WARN [request_id: 4569e1e7] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.hrdoc.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:65473->192.168.102.105:53: i/o timeout 2025-09-26T22:51:00+03:00 INFO client/internal/dns/upstream.go:322: upstreams 192.168.102.105:53, 192.168.100.21:53, 192.168.100.146:53 are responsive again. Adding them back to system 2025-09-26T22:51:00+03:00 INFO client/internal/dns/upstream.go:322: upstreams 192.168.102.105:53, 192.168.100.21:53, 192.168.100.146:53 are responsive again. Adding them back to system 2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:278: added 1 match domains to the state. Domain list: 64.100.in-addr.arpa 2025-09-26T22:51:00+03:00 WARN [request_id: c41e253d] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.ru. after 2.001s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:52421->192.168.102.105:53: i/o timeout 2025-09-26T22:51:00+03:00 WARN [request_id: f62085bd] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintest.ru. after 2.001s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:55006->192.168.102.105:53: i/o timeout 2025-09-26T22:51:00+03:00 WARN [request_id: 09ec9fd9] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.hrdoc.ru. after 2.001s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:52469->192.168.102.105:53: i/o timeout 2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:265: added 5 search domains to the state. Domain list: bk.local mydomaintestrus.ru mydomaintest.ru mydomaintestrus.hrdoc.ru netbird.selfhosted 2025-09-26T22:51:00+03:00 INFO client/internal/dns/upstream.go:322: upstreams 192.168.102.105:53, 192.168.100.21:53, 192.168.100.146:53 are responsive again. Adding them back to system 2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:344: flushed DNS cache 2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:278: added 1 match domains to the state. Domain list: 64.100.in-addr.arpa 2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:265: added 5 search domains to the state. Domain list: bk.local mydomaintestrus.ru mydomaintest.ru mydomaintestrus.hrdoc.ru netbird.selfhosted 2025-09-26T22:51:00+03:00 WARN [request_id: 6f2af708] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:62990->192.168.102.105:53: i/o timeout 2025-09-26T22:51:00+03:00 WARN [request_id: e780999c] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintest.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:58051->192.168.102.105:53: i/o timeout 2025-09-26T22:51:00+03:00 WARN [request_id: 8c7446eb] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=lb._dns-sd._udp.mydomaintestrus.hrdoc.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:55000->192.168.102.105:53: i/o timeout 2025-09-26T22:51:00+03:00 WARN [request_id: 0ac5142c] client/internal/dns/upstream.go:200: upstream 192.168.102.105:53 timed out for question domain=bird-t.mydomaintestrus.ru. after 2s (timeout=2s) (routes through NetBird peer peer-t-vpn03.netbird.selfhosted:100.64.56.216 NO_RECENT_HANDSHAKE no_handshake via_relay) - error: with udp: read udp 100.64.143.59:57519->192.168.102.105:53: i/o timeout 2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:344: flushed DNS cache 2025-09-26T22:51:00+03:00 INFO client/internal/dns/upstream.go:322: upstreams 192.168.102.105:53, 192.168.100.21:53, 192.168.100.146:53 are responsive again. Adding them back to system 2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:278: added 1 match domains to the state. Domain list: 64.100.in-addr.arpa 2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:265: added 5 search domains to the state. Domain list: bk.local mydomaintestrus.ru mydomaintest.ru mydomaintestrus.hrdoc.ru netbird.selfhosted 2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:344: flushed DNS cache 2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:278: added 1 match domains to the state. Domain list: 64.100.in-addr.arpa 2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:265: added 5 search domains to the state. Domain list: bk.local mydomaintestrus.ru mydomaintest.ru mydomaintestrus.hrdoc.ru netbird.selfhosted 2025-09-26T22:51:00+03:00 INFO client/internal/dns/host_darwin.go:344: flushed DNS cache
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@asdevcapybara commented on GitHub (Oct 23, 2025):

we have the same issue. the DNS server is running on one of the peers, and it looks like there’s a brief interruption when connecting. increasing the timeout would help to wait out the connection initialization period.

@asdevcapybara commented on GitHub (Oct 23, 2025): we have the same issue. the DNS server is running on one of the peers, and it looks like there’s a brief interruption when connecting. increasing the timeout would help to wait out the connection initialization period.
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Reference: SVI/netbird#2306