Unable to Connect to Vercel DB

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1

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:

(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.

What I’ve Tried

  1. Verified the connection string from the Neon dashboard – no typos found.
  2. Attempted to remove the -pooler suffix and connect directly to ep-shy-grass-a42wchrp.us-east-1.aws.neon.tech, but still failed.
  3. Upgraded psycopg2 to the latest version.
  4. 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.

1 Like
2

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

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3

This seems like an issue on Neon’s end. Have you tried reaching out to their support team Support - Neon Docs ?

4

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 -

nslookup ep-cool-darkness-a1b2c3d4.ap-southeast-1.aws.neon.tech [your DB Host]
server can not find ep-cool-darkness-a1b2c3d4.ap-southeast-1.aws.neon.tech: REFUSED

[If you see the above message or similar message then try connection with Google DNS]

nslookup ep-cool-darkness-a1b2c3d4.ap-southeast-1.aws.neon.tech 8.8.8.8
Server:  dns.google
Address:  8.8.8.8

Non-authoritative answer:
Name:    ap-southeast-1.aws.neon.tech
Addresses:  2600:1f18:240c:5421:acd1:6284:5a8a:d6f6
          2600:1f18:240c:5419:4ecf:2a7c:cf52:31cf
          2600:1f18:240c:543b:a8aa:14fb:d008:11k2
          2600:1f18:240c:544d:621b:957c:81:5e8e
          2600:1f18:240c:5454:82a4:8209:20f8:a5l1
          2600:1f18:240c:540b:c14a:4d57:1251:230e
          34.203.0.113.10
          52.203.0.113.30
          100.203.0.113.20
Aliases:  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 :
[Cloudflare DNS] - More Private

IpV4
Preferred DNS: 1.1.1.1
Alternate DNS: 1.0.0.1 

Ipv6
Preferred DNS: 2606:4700:4700::1111
Alternate DNS: 2606:4700:4700::1001

You can also use Google DNS
[Google DNS] - Less Private

Ipv4
Preferred DNS: 8.8.8.8
Alternate DNS: 8.8.4.4

Ipv6
Preferred DNS: 2001:4860:4860::8888
Alternate 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.

2 Likes
5

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

2 Likes
6

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

7

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