After I logged in my chatgpt account, this error always showed up, no matter I try to log in with apple account or google account. The version of macOS is Sequoia 15.2. The mbp is bought from HK with M4 pro chip. The regions of iCloud id and system setting are both US. I currently stay in Mainland China, and my vpn works fine. Can anyone tells me what happened?
[Re-Titled By Moderator]
MacBook Pro 14″, macOS 15.2
I have mbp m3 on Sequoia 15.2 and I was having the same issue and it was driving me mad but I got it working and I thought I would share hoping it helps somebody.
Things I tried (that did not help):
I live in US. I have chatgpt plus account and have no issue ever logging in via any browser with the macos desktop app. Here is what I noticed. When I go to my MacOs settings and look at Use ChatGPT and enable that and then try to "sign in" it opens up a private browser session. If your default web browser is set to Safari, it will open that up so you can log into your ChatGPT account. What I also noticed is that you can open up a developer javascript console and if your fast, I could see an error message when I logged in. The message I saw was "Fetch API cannot load https://chatgpt.com/ces/v1/b due to access control checks."
At this point I'm thinking the domain I'm currently on does not allow CORS. VPN makes no sense. I live in US and have no issues with logging in via browser or desktop app. But I tried VPN to my closest city. That is what worked.
TLDR; try a vpn. Even if you're in the US.
Good luck.
I have mbp m3 on Sequoia 15.2 and I was having the same issue and it was driving me mad but I got it working and I thought I would share hoping it helps somebody.
Things I tried (that did not help):
I live in US. I have chatgpt plus account and have no issue ever logging in via any browser with the macos desktop app. Here is what I noticed. When I go to my MacOs settings and look at Use ChatGPT and enable that and then try to "sign in" it opens up a private browser session. If your default web browser is set to Safari, it will open that up so you can log into your ChatGPT account. What I also noticed is that you can open up a developer javascript console and if your fast, I could see an error message when I logged in. The message I saw was "Fetch API cannot load https://chatgpt.com/ces/v1/b due to access control checks."
At this point I'm thinking the domain I'm currently on does not allow CORS. VPN makes no sense. I live in US and have no issues with logging in via browser or desktop app. But I tried VPN to my closest city. That is what worked.
TLDR; try a vpn. Even if you're in the US.
Good luck.
I've figured it out; at least for my use case.
I had the same issue; trying to sign into ChatGPT with an existing account would always net me a "Sign in Failed" error.
Reading the top reply; I tried to turn VPN on. No luck
I had tested if I was able to log into ChatGPT normally in a Safari session (separate from Settings Logon pane)
I was able to log in all good.
Then I realized I had AdGuard which I know sometimes has a DNS or HTTPS filtering setting turned on.
Disabling Adguard and trying to sign in again worked for me.
Obviously if you don't have AdGuard this doesn't apply to you
I am in mainland China, and my computer is the same as yours. You are right. I have tried all the methods that don't work. I still get this error when using VPN.
I am in mainland China and encountered the same problem as you. How did you solve it in the end? Please share it with me. Thank you.
Issue occurred for me when I used a passkey to sign in using Google sign-in
Had to sign in manually using username, password, and 2fa code, then it worked.
Turning ON a VNP worked for me too - thank you so much!
In the US and getting the same error. Turned off Adguard and was able to log on to my ChatGPT Plus account.
Thanks!
i solved this by switching my default brower to safari instead of chrome. For the duration of logging into my openai account.
ChatGPT Login Error on macOS Sequoia 15.2
