DNS Errors with wireless home network using a Linksys WRT54GS Wireless-G Broadband Router with SpeedBooster?

Question

I am getting DNS Errors when my son is trying to use his computer. We have 3 computers set up via the wireless router. We use broadband internet via the BB modem connected into the router. The main computer is using a direct ethernet cable and the laptop uses a linksys wireless card. My sons computer uses a linksys wireless pci card and that is the one having the DNS issues. I have set up the tcp/ip connections with static ip's because I kept getting a network ip address conflict when using automatic DHCP. My sons computer is able to establish a connection to the router, but no internet access is available. Does anyone know what is going on with my sons computer and what I could do to get it working correctly? Linksys site wasn't any help. Thanks!

Answer 1

Are you getting no access or no DNS name resolution? Try opening a command prompt and then using the Ping command to ping www.yahoo.com. If it comes back "Host name not found" try pinging 4.2.2.2 (Verizion DNS server). If this responds you have an Internet connection but no DNS service, then check your DNS addressing in your setup.



You stated that you have set up static IP addressing, have you also setup static DNS address in the TCP/IP configuration? Check the DNS settings on your son's laptop versus the current settings in the status page of your router. Some ISP change their DNS server address on occasion. Try to ping the DNS server address from your routers status page, if it does not respond your router needs to be either powered down or reset.

Answer 2

When you can't get to a web page because Windows XP or Windows 2000 has cached an unsuccessful DNS lookup, you can:



Try later (after the cache entry has expired)

Reboot your computer (which clears the DNS cache)

Clear (flush) the DNS cache manually (go to start, run, type in cmd and press return, then type in ipconfig /flushdns )

Turn off the "DNS Client" service entirely (hurts performance by requiring unnecessary lookups)

Disable caching of unsuccessful ("negative") DNS lookups (best method -- see below)

Turn off unsuccessful ("negative") DNS caching

(Applies only to Windows XP and Windows 2000.) Unsuccessful ("negative") DNS caching can be disabled by adding three Registry Values (NegativeCacheTime, NetFailureCacheTime, and NegativeSOACacheTime, all not normally present), setting them to zero. Since manual editing of the Registry is a tricky and risky business, I've provided a simple Registry script to do the job. (Click the link to start the download; save the script to your desktop; and then double-click on it to run it. When you get "Are you sure you want to add the information ..." dialog box, click Yes. The script can be tossed into the Recycle Bin after it has been run.) There is no real downside to making these changes -- just delay if you make repeated tries to an invalid Internet name. (Nevertheless, please note that you use this script at your own risk, and that it's always a good idea to back up your Registry before making any change.)



Hope this helps

Answer 3

i have the same router, and the same problem

it will work fine for about 2hrs then no connections

it does this all the time



try unplugging it and putting it in the freezer for 20seconds to cool off

plug it in, reset it



thats what i have to do and it works most of the time

Answer 4

You must have a fixed address set up on one of the other machines. You MUST run them all with the tcp/ip properties set to automatic. Then your ip conflict will go away.