[BUG] Docker compose setup fails completely

[joeyfigaro]

Describe the bug
Running docker compose -f docker-compose.prod.yml up [-d] on Ubuntu Server 25.x shows a ghcr.io timeout.

Error response from daemon: Head "https://ghcr.io/v2/simstudioai/realtime/manifests/latest": Get "https://ghcr.io/token?scope=repository%3Asimstudioai%2Frealtime%3Apull&service=ghcr.io": context deadline exceeded (Client.Timeout exceeded while awaiting headers)

To Reproduce
Steps to reproduce the behavior:

1. Clone repository and cd into it
2. Create populated .env using .env.example from README
3. Run docker compose -f docker-compose.prod.yml up
4. Observe timeout errors and crashed startup

Expected behavior
Containers are successfully pulled from registry and all services start successfully.

Screenshots
N/A

Additional context
I'm not seeing anything on the Github status page, but ghcr.io has had timeout issues in the past.

[Siddhartha-singh01]

@joeyfigaro Might be an MTU issue. If you're on a cloud VPS, the default 1500 often clips packets and causes these timeouts. Try setting the MTU to 1450 in /etc/docker/daemon.json and see if the pull goes through. Had the same thing happen on a similar setup recently.

[Siddhartha-singh01]

@joeyfigaro Assign it to me and I will resolve it as soon as possible