# Can't setup Discourse ID: redirect URI already exists
**URL:** https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136
**Category:** Support
**Tags:** discourse-id
**Created:** [February 15, 2026, 6:12pm UTC](https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136 "2026-02-15T18:12:15Z")
**Posts on this page:** 11
**Page:** 1
### Author:  [@Czar](https://meta.discourse.org/u/Czar)
#### Post date: [February 15, 2026, 6:12pm UTC](https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136/1 "2026-02-15T18:12:15Z")
Similar to this issue [Can't setup Discourse ID: Application with this redirect URI already exists](https://meta.discourse.org/t/cant-setup-discourse-id-application-with-this-redirect-uri-already-exists/388757)
My self-hosted Discourse has this exact error. But the thread above was already closed and didn’t see the answer on how to fix, but happy that issue was resolved. Is it possible to help my forum as well? Ready to share the URL in PM if it’s ok
---
### Author:  [@pmusaraj](https://meta.discourse.org/u/pmusaraj)
#### Post date: [February 15, 2026, 6:16pm UTC](https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136/2 "2026-02-15T18:16:31Z")
Please share the URL via PM, thanks.
---
### Author:  [@Czar](https://meta.discourse.org/u/Czar)
#### Post date: [February 15, 2026, 6:22pm UTC](https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136/3 "2026-02-15T18:22:20Z")
It seems that I don’t have PM permissions yet as a new user, it’s my first time interacting with Discourse. Could you PM me please, if it’s possible?
---
### Author:  [@pmusaraj](https://meta.discourse.org/u/pmusaraj)
#### Post date: [February 15, 2026, 10:58pm UTC](https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136/4 "2026-02-15T22:58:35Z")
This should be resolved via PM now. The original issue was that this instance was registered a while ago, the server has issues, so the site manager had to reinstall Discourse and the credentials didn’t carry over.
---
### Author:  [@Luna\_Mora](https://meta.discourse.org/u/Luna_Mora)
#### Post date: [February 16, 2026, 12:00am UTC](https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136/5 "2026-02-16T00:00:33Z")
I’m having this exact same issue. Can I PM you as well?
EDIT: nevermind I fixed it myself 🙂
---
### Author:  [@Czar](https://meta.discourse.org/u/Czar)
#### Post date: [February 16, 2026, 3:50am UTC](https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136/8 "2026-02-16T03:50:11Z")
Could you share, how did you carry over the credentials? So that I could also do it myself in the future without bothering the Support?
---
### Author:  [@Luna\_Mora](https://meta.discourse.org/u/Luna_Mora)
#### Post date: [February 16, 2026, 4:06am UTC](https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136/9 "2026-02-16T04:06:02Z")
The problem was with the domain, so I switched to a subdomain and it fixed it.
---
### Author:  [@MadGoose](https://meta.discourse.org/u/MadGoose)
#### Post date: [March 7, 2026, 8:18pm UTC](https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136/13 "2026-03-07T20:18:41Z")
Hi there,
I am having the same issue. I had to create a fresh install and now am getting this when trying to enable the discourse id login. I am guessing due to briefly creating an install before with the discourse id login enabled. I had to destroy that instance and install a new one. Is there a way to resolve this?
---
### Author:  [@pmusaraj](https://meta.discourse.org/u/pmusaraj)
#### Post date: [March 9, 2026, 2:02pm UTC](https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136/14 "2026-03-09T14:02:43Z")
Send me a PM with your site’s domain name and I’ll help you resolve this issue. Sorry about this, we’re working on a more straightforward solution.
---
### Author:  [@pmusaraj](https://meta.discourse.org/u/pmusaraj)
#### Post date: [March 26, 2026, 5:35pm UTC](https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136/16 "2026-03-26T17:35:03Z")
For future travellers, we have updated Discourse to handle this issue. The issues describes here shouldn’t happen going forward, ID will be able to generate new keys if the same redirect uri is used for a new registration.
---
### Author:  [@pmusaraj](https://meta.discourse.org/u/pmusaraj)
#### Post date: [April 6, 2026, 5:35am UTC](https://meta.discourse.org/t/cant-setup-discourse-id-redirect-uri-already-exists/396136/17 "2026-04-06T05:35:08Z")
This topic was automatically closed 10 days after the last reply. New replies are no longer allowed.