Server Failing!

[YMAN]

Hello All,
I am operating a web-server off one of my servers.
The program I am using is OmniHttpd v2.08
I have a IP redirecting service D2G because I have a dynamic IP.
There program is DNSTOGo Client v2.5.0.0

Whenever someone trys to acess the server they get the
following error message:

"Page Cannot Be Displayed"

& at the bottom it says:

"Cannot find server or DNS Error"

What does this mean & what is the solution?
It has been working for a long time untill now, sometimes
it works most times if fails.

If you know of any other programs/IP rerouting services that are
legally free please let me know.

[YMAN]

I think there might be a problom with D2G as when I go onto
there servers & change my dynamic IP manually and reconnect
the client, it works!?!

[Kingslayer]

Youre not updating your IP to them properly. Are you behind a firewall? That may stop the program from talking to their servers and cause it not to update.

[YMAN]

Yes I am behind a firewall, that issue has been resolved?