Have you checked that the Express API is listening on the correct host? The Express app should listen to 0.0.0.0.

https://expressjs.com/en/5x/api.html#app.listen

The correct way to start the Express app would be app.listen(PORT, '0.0.0.0');

i left it on 3000

is that on general or only regarding the static ip option ?

3000 is the port, but the host also needs to be set. The host is normally localhost or 127.0.0.1. But Railway expects the host to be 0.0.0.0.

If 3000 is your port, have you set the PORT env variable to 3000?

It's general, not specific to static ip. But it could probably cause some issues with private ip.

oh i understand you know

i have set the port only ( variable ) and it was working fine
i will try to set the host also as railway expects

Btw, how to you specify which port to use in your express app?

async function startServer() {
const app = express();

(await import("./loaders")).default({ app });

app
.listen(+process.env.PORT!, "0.0.0.0", () => {
console.log(Server running on port ${process.env.PORT});
})
.on("error", (err) => {
console.error(err);
process.exit(1);
});
}

i just added the host now and i will try

same thing

What does your log say?

The + before process.env.PORT is a little weird.

its for typescript

logs are clean

Check this part of the docs: https://docs.railway.app/guides/fixing-common-errors

There is an example of how an express app should be started.

I did follow that

I did follow that

Alright, great. How do you enable static ip? I need to try it for myself :)

Ah right, it's only available in the us regions.

Its from settings

yes im using us

I'm gonna set up a little test app myself. Just hang on a bit.

Seems to be an issue with Railway here, i get exactly the same as you. Have tried 3 different apps now and all is the same. When i enable static ip, they become unreachable.

great to know ! , thanks for sharing

When you said that it was working before enabling static IP, did you change any configuration on your application? If you disable Static IP, does your application return working normally?

no , i did not , i only added the host 0.0.0.0 to try and still not working

• i just disabled the static ip and it worked again , my app works fine without static ip

any news ?
I have enable it again , same error

This may be a bug, I am going to raise this issue to the developer- can you provide a repo and and a project Id so that we can conduct a investigation?

project ID: 3f7d7937-ae24-435d-8826-11f9a355512b

For the repo, basically any app that uses a static IP will encounter the issue.

If the repo is necessary, I can ask my developer to create a reproduction repo.

That would be good for us, I have flagged it internally as well.

looks like its working now

Let us know if you see the issue pop up again.

What was the fix for this please? My apps are also not working if using a static IP. Fine without static.

What was the fix for this please? My apps are also not working if using a static IP. Fine without static.

its a bug from railway it get fixed now all good

There was a bug that affected containers placed on certain host machines, which is now patched. If you experienced this issue, re-deploying with Static IPs enabled should work now.