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Docker 1.13 - Windows Issues

There are some situations where Docker on Windows doesn't behave as expected.

These are the known issues, with resolutions.

Engine

Publish port unavailable - HNS failed with error : Failed to create endpoint

I haven't reliably replicated this, but it seems to happen when you have a container running with a published port and the host exits ungracefully.

When the host restarts, the port mapping hasn't been cleared. It doesn't get cleared if you docker rm the old container either.

If you docker run a new container trying to publish to the same port, you get the error from HNS (Windows Host Networking Service), because the port is still mapped.

####WORKAROUND

Use PowerShell NetNat commands to clear the still-allocated port. E.g. for port 80:

Get-NetNatStaticMapping | ? ExternalPort -eq 80 | Remove-NetNatStaticMapping

Credit to Kentico for the workaround.