OneDrive for Business We can't connect to the specified SharePoint Site error

One of my user not able to connect his SharePoint site. When I check his system he is getting the below error in OneDrive application.

onedrive we can't connect to the specified SharePoint site... 999tech

I confirm his permission he is a member of the SharePoint site. Other users in the same SharePoint site can able to connect with the OneDrive application and able to smoothly sync application to the desktop. But he is only getting the error particularly for this site only.

Hello,
Please check the link below.