Static IP address, dns problem.

Rip_Uk

Active Member
Recently I set up my router to forward a port for both my laptop and desktop computers. To allow the port to be forwarded for the correct machine I needed to set up static IP addresses.

I had no problems with my Windows Vista Home laptop, I disabled IPv6 and set the IPv4 details as below:

IP Address: 192.168.1.101
Subnet Mask 255.255.255.0
Default Gateway: 192.168.1.1 (Linksys WRT54GL v4)
Dns Servers: 192.168.4.100
192.168.8.100

The laptop connected to the router and Internet fine and the port was forwarded successfully.

I then disabled IPv6 and set the details of my Windows 7 desktop computers IPv4 to:

IP Address: 192.168.1.100
Subnet Mask 255.255.255.0
Default Gateway: 192.168.1.1 (Linksys WRT54GL v4)
Dns Servers: 192.168.4.100
192.168.8.100

Upon pressing the Ok button I get a DNS server error. What am I doing wrong here?
 
Is there actually a computer at that IP address running DNS? If not you will need to point the DNS server back to the router or perhaps to an openDNS server.
 
It connects to the Internet if I use automatic settings, and the settings that I get by using ipconfig /all are the same as what I add in to the manual settings for IPv4.

How do I point the DNS server back to the router and why does it work for the laptop?

I previously configured a friends networked computers with static IP addresses (Windows XP, Windows Vista and Windows 7) with no problems.

just to add also, my desktop computer is also connected wirelessly via wireless PCI card.
 
put the IP back to 192.168.1.1 for DNS

a computer can look itself up always, so if you point DNS to itself it will always resolve DNS to itself. If you have more than one computer will need need to run DNS from something be it a router or a server running the DNS service.
 
Ok that works great. Thanks a lot for your help.

Can you point me in a good direction for mre information about this kind of thing and can you answer another question?

Why does the laptop connect to the router when using the DNS servers:

192.168.4.100
192.168.8.100

and the desktop doesnt?
 
What OSes are you running? Is the laptop a different OS that may not be so DNS dependent, if it is a "home version" of windows they don't need DNS to run, every other OS (MS Pro versions) do. Maybe that is the difference?
 
The desktop is Windows 7 Ultimate and the laptop is Vista Home Basic so yes, your right. Thanks for the help.
 
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