Failed to configure: WireGuard error: Netlink error: Netlink payload error: No such device

[dburianov]

I have 2 similar instalation. All run in docker compose. 1 instance with all servers(gateway, core, proxy, nginx) and 2 instances with gateway only.

Maybe after 24 hours after start gateway, I see in gateway logs:

2026-07-24T06:08:01.813671Z  INFO defguard_gateway::gateway_server: message=Defguard Core gRPC client connected from 11.22.33.44:57446 log.target=defguard_gateway::gateway_server log.module_path=defguard_gateway::gateway_server log.file=src/gateway_server.rs log.line=162
2026-07-24T06:08:01.813705Z  INFO core_communication: defguard_gateway::version: message=Defguard Core version 2.0.2+f74086e is supported log.target=defguard_gateway::version log.module_path=defguard_gateway::version log.file=src/version.rs log.line=22 [2.0.2][C:2.0.2+f74086e]
2026-07-24T06:08:01.813730Z  INFO core_communication: defguard_gateway::gateway_server: message=Requesting network configuration from 11.22.33.44:57446 log.target=defguard_gateway::gateway_server log.module_path=defguard_gateway::gateway_server log.file=src/gateway_server.rs log.line=203 [2.0.2][C:2.0.2+f74086e]
2026-07-24T06:08:02.089021Z ERROR defguard_gateway::gateway_server: message=Failed to configure: WireGuard error: Netlink error: Netlink payload error: No such device (os error 19) log.target=defguard_gateway::gateway_server log.module_path=defguard_gateway::gateway_server log.file=src/gateway_server.rs log.line=227 [2.0.2 Debian 13.0.0 x86_64]
2026-07-24T06:08:21.399806Z ERROR defguard_gateway::gateway: message=Failed to retrieve WireGuard interface statistics: Netlink error: Netlink payload error: No such device (os error 19) log.target=defguard_gateway::gateway log.module_path=defguard_gateway::gateway log.file=src/gateway.rs log.line=618 [2.0.2 Debian 13.0.0 x86_64]

logs from core container:

core-1     | 2026-07-24T06:08:01.842025Z  INFO defguard_gateway_manager::handler: message=Connected to Defguard Gateway http://88.77.66.55:50066/
core-1     | 2026-07-24T06:08:01.842060Z  INFO defguard_gateway_manager::handler: message=Received message from Gateway.
core-1     | 2026-07-24T06:08:02.079936Z  INFO defguard_gateway_manager::handler: message=Configuration sent to Gateway(ID 9; URL 88.77.66.55:50066), network [ID 4] Infra
core-1     | 2026-07-24T06:08:02.080028Z  INFO defguard_gateway_manager::handler: message=Sent configuration to Gateway(ID 9; URL 88.77.66.55:50066)
core-1     | 2026-07-24T06:08:02.582266Z  INFO proxy_bidi: defguard_gateway_manager::handler: message=Starting update stream to gateway: Infra, network [ID 4] Infra [2.0.2][PX:2.0.2+322ac3f]
core-1     | 2026-07-24T06:08:04.357826Z  INFO defguard_gateway_manager::handler: message=Received message from Gateway.

after this system lost WG interface. For fix it I need stop and start container.

One feature, this problem only on remote gateways. Gateway, that run in one docker compose with other services, does not have this problem.

[teon]

Hi @dburianov - please follow these instructions to add more details to the issue https://docs.defguard.net/support-1/how-to-submit-an-issue

[dburianov]

Hi @teon Defguard runned with Debug logs. it is no more logs for this issue.

[wojcik91]

Hi @dburianov,
We've found the issue and prepared a fix: #357
It will be released soon in 2.0.4.