GET /admin.php HTTP/1.1" 401

Hello,

I just moved my site behind a load balancer (aws). Now I am unable to log into the CP, a log in box is shown and no creds are working.

error in access log is : “GET /admin.php HTTP/1.1” 401

error in error log is : client denied by server configuration: /var/www/fcbh/admin.php and Negotiation: discovered file(s) matching request: /var/www/fcbh/admin (None could be negotiated)

error if I do not login on web page is : Unauthorized This server could not verify that you are authorized to access the document requested. Either you supplied the wrong credentials (e.g., bad password), or your browser doesn’t understand how to supply the credentials required.

Setup is : AWS-LoadBalancer -> Instance