#No ip duc error how to
#No ip duc error install
#No ip duc error software
#No ip duc error windows

Our server will attempt a connection directly to your IP address and let you know the results. The simplest way to test if your ports are open and properly configured on your end is to use our tool at Simply put the port number you want to test, 22 in our example, in the box marked “What Port?”, then push the “Check” button. In their zealous attempts to regulate what happens on their networks though, they can sometimes cause problems for legitimate users. ISPs have many reasons for blocking access to certain ports they usually perform these actions to enforce their terms of service or to try to minimize the flow of unsolicited email. If everything to this point checks out OK, then it’s possible that your ISP is blocking the port(s) needed for your application to function properly. Maybe your ISP is blocking the port(s) you are trying to use? You should only open the ports that are needed to get your applications to work and always make sure your computers have all the latest patches and security updates applied in order to minimize the possibility of someone compromising your network. Remember too, that opening and forwarding ports on a router and punching holes in a firewall effectively exposes your internal network to the internet.

#No ip duc error how to

Consult the documentation for your product for specific information about how to configure them.

#No ip duc error software

Other popular firewall or security software includes Norton Internet Security, Zone Alarm, etc.

#No ip duc error windows

We have an illustrated guide that covers the Windows firewall product here. Among the more popular firewalls is the one built in to Windows® XP. Firewalls need to be configured to allow inbound connections as well or your attempts to connect from the outside world will be met with failure. Have a look at our Primer on Opening and Forwarding Ports on your Router for more information on this.Īnother key component that works hand-in-hand with your router can be a firewall. You’ll need to know what port your application uses, and also the internal network IP address of the machine you’re using to serve that application.

Since No-IP’s DNS service resolves your hostname to the IP address assigned to you by your ISP and can not resolve your internal network addresses, you need to configure port forwarding in your router. In order to be able to run a server on your network, you’re going to have to tell your router what to do with incoming connection requests from the internet. The next common source of trouble can be your router. If the DUC software is running and you don’t see the right IP address being returned by the nslookup command, please see our support page for further help. The IP address returned should match the one you see in your No-IP account. In response you should see something that looks similar to this: Server: Open a command line window (terminal on Linux machines, DOS box on Windows computers), and type the following: nslookup (). The easiest way to test this is to use the NSLOOKUP command from a terminal window. If the right IP address is being shown in your account, the next thing to check is if the DNS server is returning the right IP address when being asked for that information. Is the DNS server returning the right IP address?

#No ip duc error install

If you’re not yet running our No-IP DUC software to track your IP address, you should install it now. If you see a different IP address for your hostname than what you expect, that’s going to prevent you from making a connection to that host.

You should see text that reads “Logged In As: (your username here)” and “Current IP: (your.ip.address.here).” Now go to the Hosts/Redirects page and click “Manage.” Your current host list should appear and the IP address for the host you’re trying to reach should match the IP address you’re logged in from. Once you’re logged in and have accessed your account, check your current IP address by looking at the upper left-hand corner of the page. Log in to your No-IP account on our website from the host location. No-IP Troubleshooting Checklist 1) Does the IP address match the location you’re trying to reach?Ģ) Is the DNS server reporting the right IP address?ģ) Is your router properly configured for your application?įirst things first…Does your IP address match the one in our DNS database? From there you can get access to our knowledge base and support ticket system. We’ll use this article to cover some of the most common errors we see, but as always if you’re having trouble, the first place to look for help is on our support page. Uh oh, if you’re looking at this page then you might be experiencing a problem with the computer you’re trying to connect to by using No-IP’s services. Modified on: Thu, 19 May, 2016 at 9:23 AM