Unable to Connect to Vercel DB

I'm currently experiencing a connection issue with my Neon PostgreSQL instance. Since this morning, my application is failing to connect to the database with the following error:

1(psycopg2.OperationalError) could not translate host name "ep-shy-grass-a42wchrp-pooler.us-east-1.aws.neon.tech" to address: No such host is known.2

What I've Tried

Verified the connection string from the Neon dashboard – no typos found.
Attempted to remove the -pooler suffix and connect directly to ep-shy-grass-a42wchrp.us-east-1.aws.neon.tech, but still failed.
Upgraded psycopg2 to the latest version.
My internet connection is stable, and other external services are reachable.

Is there a known issue affecting this region or host? Or has there been a recent change in host naming or DNS setup that could be affecting resolution?

Would appreciate any guidance on how to restore connectivity.

I’m having the same issue, I can’t access my database from the Neon dashboard either.

This seems like an issue on Neon's end. Have you tried reaching out to their support team https://neon.tech/docs/introduction/support#support-tickets ?

I'm not sure about your problem, In my case i was having DNS resolution issue.

If you are having DNS issue, check it by running nslookup. In your terminal run this commands -

1nslookup ep-cool-darkness-a1b2c3d4.ap-southeast-1.aws.neon.tech [your DB Host]2server can not find ep-cool-darkness-a1b2c3d4.ap-southeast-1.aws.neon.tech: REFUSED34[If you see the above message or similar message then try connection with Google DNS]56nslookup ep-cool-darkness-a1b2c3d4.ap-southeast-1.aws.neon.tech 8.8.8.87Server:  dns.google8Address:  8.8.8.8910Non-authoritative answer:11Name:    ap-southeast-1.aws.neon.tech12Addresses:  2600:1f18:240c:5421:acd1:6284:5a8a:d6f613          2600:1f18:240c:5419:4ecf:2a7c:cf52:31cf14          2600:1f18:240c:543b:a8aa:14fb:d008:11k215          2600:1f18:240c:544d:621b:957c:81:5e8e16          2600:1f18:240c:5454:82a4:8209:20f8:a5l117          2600:1f18:240c:540b:c14a:4d57:1251:230e18          34.203.0.113.1019          52.203.0.113.3020          100.203.0.113.2021Aliases:  ep-cool-darkness-a1b2c3d4.ap-southeast-1.aws.neon.tech

If you get the addresses that means you have DNS issue.

How I fixed my problem:

Changed my WiFi adapter from Automatic (DHCP) to Manual DNS :

1[Cloudflare DNS] - More Private23IpV44Preferred DNS: 1.1.1.15Alternate DNS: 1.0.0.1 67Ipv68Preferred DNS: 2606:4700:4700::11119Alternate DNS: 2606:4700:4700::10011011You can also use Google DNS12[Google DNS] - Less Private1314Ipv415Preferred DNS: 8.8.8.816Alternate DNS: 8.8.4.41718Ipv619Preferred DNS: 2001:4860:4860::888820Alternate DNS: 2001:4860:4860::8844

For other connection related issues you can visit - Neon’s Connection Troubleshooting Guide

Join their Discord Support Server for real-time assistance.

Hey, Imtiaj! We appreciate you sharing what worked for you. Folks in community would definitely find this useful 😃

Thanks a lot! Unfortunately, I deleted my database and recreated it without taking a backup.