Authentication failed when logging in locally

[mohammadjavaher]

Hi

I have published my RS to the Internet through a firewall. To do this, I have registered a public subdomain. When I connect to the server from outside the VM, there is no problem. But when RDP into the server itself and type FQDN of server, authentication window pops up and asks for username and password. No matter which username/password combination I provide, it rejects my user/pass:

Report Server Configuration Manager:

Access from my laptop via FQDN and SSL connection through firewall:

Access from within the server via FQDN and SSL:

This is exactly where I'm stock. Please help.

Thanks.

[hackcrr · Accepted solution]

hi, @mohammadjavaher 

This issue is usually related to how the server handles authentication and how loopback connections are managed. Windows Server includes a security feature that prevents reflection attacks on your computer. This feature is called loopback checking. When you use an FQDN to access a website on the local server, it can trigger this security feature.
To allow specific FQDNs:

New-ItemProperty -Path "HKLM:\System\CurrentControlSet\Control\Lsa\MSV1_0" -Name "BackConnectionHostNames" -Value "your_fqdn" -PropertyType MultiString -Force

https://learn.microsoft.com/en-us/power-bi/report-server/configure-kerberos-powerbi-reports#using-se...

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