17 days ago
My project is affected by a networking issue that appears to be at the Railway Edge layer.
Evidence:
• Deployment succeeds.
• Application startup completes successfully.
• Uvicorn listens on 0.0.0.0:8080.
• Public Networking is configured correctly.
• Both my original service and a newly created service have the same issue.
• DNS resolves normally.
• curl reaches the Railway IP but times out during the TCP connection.
• ITDog global tests also fail.
• The application itself is healthy.
The Railway AI Agent already concluded:
"The TCP timeout strongly suggests the edge layer isn't routing traffic to your replicas."
Could you please have the infrastructure team check the networking for this project/service?
The problem reproduces on two independent Railway services in the same project.
8 Replies
17 days ago
This thread has been opened as a bounty so the community can help solve it.
Status changed to Open Railway • 17 days ago
17 days ago
Can you confirm that you have set the right port for the generated/custom domain?
mayori
Can you confirm that you have set the right port for the generated/custom domain?
17 days ago
Yes.
Both the generated domain and the custom domain are configured to use port 8080.
The application starts successfully and Uvicorn is listening on:
Uvicorn running on http://0.0.0.0:8080
The deployment is marked as successful and the service status is Online.
However, both the generated Railway domain and the custom domain time out during the TCP connection stage.
I also created a brand-new Railway service with the same code and the same result.
So it doesn't appear to be an application or port configuration issue.
I also tested from multiple external networks (including ITDog global tests), and all requests time out before reaching the application.
0x5b62656e5d
Can you share the URL?
16 days ago
Sure.THX
Generated Railway domain:
https://practical-happiness-production-2370.up.railway.app/health
Custom domain:
Both domains time out before reaching the application.
The application itself starts successfully:
- Deployment succeeds
- Service status is Online
- Uvicorn listens on 0.0.0.0:8080
- Public Networking is configured to port 8080
I also tested from multiple external networks and ITDog global HTTP tests, and both domains consistently time out.
16 days ago
I'm able to access that URL just fine. Try using a VPN to access the site.
Attachments
0x5b62656e5d
I'm able to access that URL just fine. Try using a VPN to access the site. 
16 days ago
Could you also let me know which IP address the generated domain resolves to on your side?
Mine resolves to:
69.46.46.97
I want to confirm we're reaching the same edge node.
16 days ago
69.46.46.97
If you're experiencing an ISP/regional block, then your only options would be to use a different network, a VPN, or use 1.1.1.1 as DNS.
16 days ago
thank u