Magento – Invalid credentials for ‘https://repo.magento.com/packages.json’, aborting

I am having real trouble getting past this stage. I have looked at posts on this topic from different websites and none of the solutions work. I have created secret keys via magentocommerce website and using the keys to login to repo.magento.com.

Everytime I get the same error:

[Composer\Downloader\TransportException]
Invalid credentials for 'https://repo.magento.com/packages.json', aborting.

I have tried the manual approach when the username and password keys are not stored in auth.json file in .composer. After I enter the username I see the following error:

Password: bash: stty: command not found

I then tried to add the username and password to auth.json using the following format suggested here getcomposer.org/doc/articles/http-basic-authentication.md

I then ran this to test:

/usr/local/php56/bin/php-cli composer.phar update –dry-run

Which results with:

Loading composer repositories with package information

[Composer\Downloader\TransportException]
Invalid credentials for 'https://repo.magento.com/packages.json', aborting.

I have also created and new magento account and created new set of keys which has not helped.

Is anyone able to help?

Kind regards,

Hemal