SharePoint site with custom host header will prompting the user login screen on local machine but either you can login or view the site from your local network machines. Because the loop back is enabled by default on each and every machine. To resolve the issue you have to disable it.
Open PowerShell as administrator privilege and run the below script;
1 |
New–ItemProperty HKLM:\System\CurrentControlSet\Control\Lsa –Name “DisableLoopbackCheck” –Value “1” –PropertyType dword |
I hope the things are going good :)Cheers!