we have shares on a server that should open without asking for credentials (current user has permissions there). The server has several other records in another dns zone leading to it's ip. We can open the share from other servers in the domain by all three possible methods - servername, FQDN, IP. So using \\servername\mall or by FQDN \\application.company.se\mall or by \\ipaddress\mall the share opens without asking for creds. But when you are on the server itself via RDP and try to open this share using FQDN \\application.company.se\mall then it asks for credentials and no creds work instead of opening it right away! I can open it via \\servername\share or \\ipaddress\share when on the server, but only FQDN somehow does not work. Both server name and custom dns name are in DNS pointing to the same address and I can ping and resolve everything. I tested on another server which has another dns entry (besides it's computername.domain) and it behaves the same. I also tried it in some other completely different environment and it's the same.
This server is not a DNS server