CMS connection problem

[stefano colombo_1]

I've the following problem
If I open the CMS from the local host I can get to the login page . If I try from a remote client and browse https://cmsserver:50000 I get the error
The page cannot be found
The page you are looking for might have been removed, had its name changed, or is temporarily unavailable.

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Please try the following:

If you typed the page address in the Address bar, make sure that it is spelled correctly.

Open the a862qc00.cariprpc.it:50000 home page, and then look for links to the information you want.
Click the Back button to try another link.
Click Search to look for information on the Internet.



HTTP 400 - Bad Request
Internet Explorer

what should I check ?
thanks

[Rob Buxton]

DNS?
For IE, check that the bypass proxy for local servers is checked, or enter the full URL and ensure it's listed as some for of entry in the servers allowed to bypass the proxy.

[stefano colombo_1]

not a problem of DNS , and I don't use proxy in my browser.
It seems a security issue