[Bug]: Setup-TraefikContainerForBcContainers fails on windows server 2025

[KoFrank]

BCContainerhelper version

6.1.9

Describe the issue

Trying to setup the Traefik container and configuration fails on Windows Server 2025 Standard. Error message points to the container operating system not matching the host. We were able to set it up years ago on a Windows Server 2019 Standard and wanted to migrate this to a newer version.

Command or script used to produce the issue

Setup-TraefikContainerForBcContainers -PublicDnsName xxx.yyy.com -ContactEMailForLetsEncrypt admin@yyy.com
(Domain and email changed for privacy reasons)

Full output of the command or script

Creating folder structure at c:\programdata\bccontainerhelper\traefikforbc
Directory: C:\programdata\bccontainerhelper

Mode LastWriteTime Length Name

---

d----- 21.11.2025 16:20 traefikforbc

Directory: C:\programdata\bccontainerhelper\traefikforbc

Mode LastWriteTime Length Name

---

-a---- 21.11.2025 16:20 0 traefik.txt
d----- 21.11.2025 16:20 my
d----- 21.11.2025 16:20 config

Directory: C:\programdata\bccontainerhelper\traefikforbc\config

Mode LastWriteTime Length Name

---

-a---- 21.11.2025 16:20 0 acme.json
Create traefik config file
Pulling traefik
docker.io/tobiasfenster/traefik-for-windows:v1.7.34
Running traefik
34afd6d438d8a5a5b16864fe1d3d8d81c9cfe1bf7e81c214f534d66e4dc87ba2
34afd6d438d8a5a5b16864fe1d3d8d81c9cfe1bf7e81c214f534d66e4dc87ba2
Setup-TraefikContainerForBcContainers Telemetry Correlation Id: 8e4c27b6-491e-4e6f-bb23-d0c3b7fec906
DockerDo : docker: Error response from daemon: container 34afd6d438d8a5a5b16864fe1d3d8d81c9cfe1bf7e81c214f534d66e4dc87ba2 encountered
an error during hcs::System::Start: failure in a Windows system call: The container operating system does not match the host operating
system. (0xc0370101)
Run 'docker run --help' for more information
ExitCode: 125
Commandline: docker run -p 443:443 -p 80:80 --restart always -v "c:\programdata\bccontainerhelper\traefikforbc\config:c:/etc/traefik"
-v \.\pipe\docker_engine:\.\pipe\docker_engine -p 8080:8080 --detach tobiasfenster/traefik-for-windows:v1.7.34
--docker.endpoint=npipe:////./pipe/docker_engine
At C:\Program Files\WindowsPowerShell\Modules\BcContainerHelper\6.1.9\ContainerHandling\Setup-TraefikContainerForNavContainers.ps1:195
char:5

• DockerDo -command run -imageName "$traefikImage --docker.endpoint ...
  

• ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException
  • FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,DockerDo

Additional information

No response

Does this happen every time?

Yes

Did this used to work?

Yes

[aholstrup1]

I don't know a ton about the Traefik functionality myself but it would appear that the repository for the docker image has been retired: https://github.com/tfenster/traefik-for-windows. As we don't own the Docker image, I'm not sure how much we can really do.

Based off the README.md of the above repository, maybe you could try using the official Traefik image instead

Maybe @tfenster knows more about the current state of thins :)

[tfenster]

As I am not working with traefik anymore (see #2169 (comment) for more), I can't really help as well, sorry. The error message looks to me like a mismatch between the host os and the container image, which might be solved by using the functionality contributed by @freddydk here #2998