Help to get the site collection name with C# in SP onprem

This is an update:

I have created a lokal SharePoint isntallation and tested the name change in a site collection. 

The original name was My site and in the central administration I could see the same name in the Title property. 

Then I updated the name by going to Site settings -> Title and description and I changed it to My new site collection. Once again in the central administration the Title property updated to the new name without any problems.

I did the same test in the scarp SP on prem but the title property in the central administration didn't update.

What can be wrong in the scarp SP? is there any setting that should be changed? 

Best regards

Americo