Question : Network issues please help

I have several devices on my network that use HTTPS for managment.  I added these items to my local DNS server and now I can not manage them via their IP address unless I am on the DNS server.  However, the starange thind is that I can manage them by their host name .  This is really strange to me as the hostname mearly translates to the Ip address.  

Example:
If I am on a desktop and browse to https://10.10.10.1 (for example) I get: "Network Error (tcp_error) A communication error occurred: "Operation timed out" The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time. For assistance, contact your network support team. "

If I browse to https://printer1 I easily get to the managment console. (Printer1 is the hostname for 10.10.10.1)

if I am on the DNS server and browse to: https://10.10.10.1 I easily get to the managment console.

Any help would be fantastic as I am stuck...

Answer : Network issues please help

I discovered the problem.  Our company made some changes to our Proxy.pac file and that was messing things up.  Thanks for all the suggestions.