repo.magento.com URL requires authentication

[Eq IT]

Hello,

We're facing the issue mentioned in the thread subject when trying to deploy to our production environment. This happens when composer install fires as below:

[Composer\Downloader\TransportException]
The 'https://repo.magento.com/archives/magento/module-store/magento-module-store-100.2.8.0.zip' URL required authentication.
You must be using the interactive console to authenticate

We've tried changing access keys as https://support.magento.com/hc/en-us/articles/360031380671-Deployment-issues-relating-to-account-per... suggests but no luck.

Credentials have been working until last Saturday, the 10th when we were able to deploy without any issues.

Can someone help us?

Thanks in advance.