Getting error when creating Oauth2 connection for Google

Describe the issue/error/question

We are teaching n8n in a bootcamp school in Paris. All students try to setup Oauth2 connection from n8n desktop to be able to use Google Sheets node. They get their client id and secret after copying URI url provided by n8n, but once they sign-in from n8n, everyone is getting a same error 404 (25 students).

What is the error message (if any)?


Please share the workflow

Just trying to create the connection

Information on your n8n setup

  • n8n version: 1.7.0
  • Running n8n via [Docker, npm,, desktop app]: Desktop App

Hi @pmochkovitch, welcome to the community :tada:

I am very sorry to hear you’re having trouble. I just gave this a go on my side using version 1.7.0 of the desktop app (running [email protected]), but ended up here as expected:

Seeing you are getting a 404 error I suspect something might be wrong with the tunnel service used by n8n desktop on your end to open up a local n8n instance to the internet. So, in a first step, could you perhaps try resetting the tunnel URL as described here to verify whether this solves the issue?

If not, perhaps @jan can take a closer look if there’s something wrong with the tunnel?