Unable to Setup Oauth

I have been trying to setup authentication and It has been failing. https://auth-global.api.smartthings.com/oauth/token

It appears the service has been down. Any Pro tip on getting around this issue?

Welcome, @oajibulu!
Are you trying to connect a third-party cloud with SmartThings?
Can you share the steps you are following and a screen capture of the error, please?