Outbound traffic issues - Network is unreachable
liorhalfon
HOBBYOP

2 months ago

Since the most recent deploy at 2026-04-29 15:06:48 UTC, our FastAPI service has been unable to make any successful outbound HTTPS call.

Every attempted outbound connection from the container fails with httpx.ConnectError: [Errno 101] Network is unreachable.

I have another environment in the same region with exactly the same version and config which is able to make outbound calls.

I effectively have a downtime in my production server, so this is urgent.

Please help.

  • Region: europe-west4-drams3a
  • Plan: hobby
  • Latest deployment ID: 971eeed9-535f-4c28-b5aa-6861bb37e717
  • Deploy created at: 2026-04-29 15:06:48 UTC
Solved$10 Bounty

Pinned Solution

darseen
HOBBYTop 1% Contributor

2 months ago

Enable Outbound IPv6 in your service settings and see if that helps.

Attachments

image.png

2 Replies

Status changed to Open Railway • 2 months ago

darseen
HOBBYTop 1% Contributor

2 months ago

Enable Outbound IPv6 in your service settings and see if that helps.

Attachments

image.png

Status changed to Solved liorhalfon • 2 months ago

darseen

Enable Outbound IPv6 in your service settings and see if that helps. ![](https://station-server.railway.com/attachments/att_01kqd2dzh0f20bczrhmerg7w8r)

liorhalfon
HOBBYOP

2 months ago

Not sure if this was the issue, but once I redeployed it was resolved (with the ipv6EgressEnabled)

Status changed to Awaiting Railway Response Railway • 2 months ago

Status changed to Solved 0x5b62656e5d • 2 months ago

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