IP Address Mismatch on signing into Heroku CLI

Heroku Problem Overview

Previously I could sign into the heroku command line interface with heroku login. But now I get an IP address mismatch error. How should I resolve this?

Heroku Solutions

Solution 1 - Heroku

Copy and paste heroku login -i in your terminal. This is what solved it for me.

Solution 2 - Heroku

Just adding some detailed steps to resolve the issue

Navigate to https://dashboard.heroku.com/account/applications
In Authorizations click on create authorization button
Add description in pop up eg.heroku cli and leave expire after blank if you dont want it to expire
You will get authorization token
in cli run heroku login -i
when it prompts for password enter the authoriation token

Solution 3 - Heroku

The accepted answer (run heroku login -i) doesn't work for accounts with MFA enabled. What I did instead was to reveal my account's API key and put it into ~/.netrc like so:

machine api.heroku.com
  login <MY_EMAIL>
  password <API_KEY>
machine git.heroku.com
  login <MY_EMAIL>
  password <API_KEY>

And voila! I can now use the CLI. This worked for me with Google CloudShell.

P.S. -- I added my machine's SSH key but could not understand how to use that to configure the CLI's access. It seems hard-coded to look for API keys in ~/.netrc.

Solution 4 - Heroku

If you are using Multi-Factor Authentication you could generate an Authorization token in settings page: https://dashboard.heroku.com/account/applications

Run heroku login -i and use the generated token as password.

Solution 5 - Heroku

This error will occur when your machine is behind a proxy if you disable the proxy temporarily then authentication will be done.

Solution 6 - Heroku

For accounts that have MFA.

Run heroku login, press any key to open up browser window. Copy the url and open it in incognito mode.

Solution 7 - Heroku

New changes where added by Heroku on login. You can find the change logs here.

In case if you are behind the firewall you may need to set the proxy.

> set HTTP_PROXY=http://proxy.server.com:portnumber

Solution 8 - Heroku

If you're using a Mac running macOS 12 Monterey with the Private Relay feature enabled, you'll need to turn that off while you complete the Heroku CLI authentication workflow, since that feature is obfuscating your actual IP address by proxying your traffic through a pool of IP addresses.

Solution 9 - Heroku

Close or switch terminal, and then rerun the command "heroku login" This works for me!

Solution 10 - Heroku

I initially installed Heroku with Snap software package manager. Installing it with npm solved my problem. copy and paste the code below.

npm i -g heroku

Solution 11 - Heroku

My default browser is Safari with private relay on. This was my issue. I just copied the url from the Safari browser to one of my other browsers (Brave) and it worked.

Solution 12 - Heroku

I tried all the Solutions mentioned above but the VPN solved my issue. I think i have a problem with my ISP or HTTP PROXY

> HTTP_PROXY=http://proxy.server.com:portnumber

Content Type	Original Author	Original Content on Stackoverflow
Question	Christian Doucette	View Question on Stackoverflow
Solution 1 - Heroku	Lex Carter	View Answer on Stackoverflow
Solution 2 - Heroku	MD5	View Answer on Stackoverflow
Solution 3 - Heroku	Neil C. Obremski	View Answer on Stackoverflow
Solution 4 - Heroku	Daniel Tello	View Answer on Stackoverflow
Solution 5 - Heroku	M.Kouchi	View Answer on Stackoverflow
Solution 6 - Heroku	McConnell	View Answer on Stackoverflow
Solution 7 - Heroku	KJK	View Answer on Stackoverflow
Solution 8 - Heroku	Richard Jones	View Answer on Stackoverflow
Solution 9 - Heroku	Jibril14	View Answer on Stackoverflow
Solution 10 - Heroku	Prince Charles	View Answer on Stackoverflow
Solution 11 - Heroku	Chad C.	View Answer on Stackoverflow
Solution 12 - Heroku	Takatoshi Wada	View Answer on Stackoverflow