DNS name for Sharepoint site not start directly

Feb 16, 2015 at 4:31 AM
Am using Sharepoint2013 with SQL2012.

I prepare my Server and everything Work fine , I give the User DNS Url that Connect to my Server, But the Problem is with DNS Url take time to start and it give error ("File no found") for some time and then work fine , but when I Use Url with my serevr name it's work without any delay.

Is any one come across with this Issue , and Why the DNS url late to start.

I go through Event Viewer and there is no Error.

Is there any Setting i have to do in IIS?