Hello Railway Team,

My application is unable to connect to my external Supabase database and is consistently failing with the following error: Database connection failed: connect ENETUNREACH 2600:1f1c:f9:4d0f:4da5:5ed2:f4d1:7fb5:5432

Here are the details:

• Railway Project:YT-manage-V4

• Latest Deployment ID:d967ebf2 (or provide the latest one)

• Database Host:db.ychabajmtnknhhmxqqvk.supabase.co

We have already performed extensive troubleshooting and can confirm the following:

1. Environment variables are correctly loaded by the application.

2. Supabase firewall is completely open. We have confirmed that rules for 0.0.0.0/0 (all IPv4) and ::/0 (all IPv6) are active in our Supabase project's Network Restrictions.

3. We have tried to force IPv4 connections, both via the start command (--dns-result-order=ipv4first) and programmatically within the Node.js application (dns.setDefaultResultOrder('ipv4first')). Neither method worked; the application still attempts to connect via IPv6 and fails.

Given that the firewall is open and IPv4-forcing methods have failed, this strongly suggests an issue within the Railway networking environment that is preventing outbound connectivity to our Supabase host.

Could you please investigate this from your end?

Thank you.