Can connect with ISP assgned IP; not with dyndns name

Working for me. Open Port Tool shows that port open for that hostname.

https://www.dyndns.com/support/tools/openport.html

Plus when I go to http://htidsc.dyndns.org:5550 I am greeted with a screen saying it will take a few minutes for software to be downloaded on my computer and some antivirus warning. That means I am reaching your device fine. DynDNS is working, your port forwarding is working, everything is working.

Yes, on my dyndns service page, it shows http://htidsc.dyndns.org resolving to my external IP. In fact, I got my external IP by logging onto my dyndns account. The dyn update client is on the machine that runs the cctv system; starts with windows start. That machine is connected along with most of my network through a highspeed switch, which is then connected to my Westell DSL router.

My daughter can connect using the ISP assigned IP; but not with the the domain name at dyndns.

BTW, thanks for helping out.

What port are you trying to connect on?

Hello .. If you need the answer, i have it already.

If you have more then one clients in a LAN, then you have to specify the port from outside that you wanna use for connect . for example:

PC 1 = http://mydomain1.dyndns.org have the connectionport 5900

PC 2 = http://mydomain2.dyndns.org have the connectionport 5901

so if you wanna connect to the PC 1 you have to specify the url like this:

mydomain1.dyndns.org:5900

and for the PC 2 :

mydomain2.dyndns.org:5901 otherwise you get the failure that your address is not reachable or ACCESS DENIED....

i hope it can help you.

greetings

Does your hostname resolve to your WAN IP? If not it suggests there is a problem with the update client you're using. If you are using a router to perform the update then that router must be the device that connects you directly to your ISP, not to an ADSL modem or another router.