Hi all

I have had this problem for months now and I just can't seem to fix it. I have posted to a couple of other forums but they have been of no help.
I am running xp professional, sp2, IE6 and Mozilla Firefox, adaware, AVG, Spyware doctor.

I receive the following message when I go to about half of the webpages I try and look at. "Cannot find server or DNS Error" THe same pages don't work through Firefox but it doesn't give that error.

Some webpages will give me that error message one day and then work the next time I log on. There doesn't seem to be any pattern to when or for what pages the error will appear. Some webpages Eg: google always work, others eg: metallica.com only work sometimes.

My system appears to be clean of viruses and spyware.

Is anyone about to help? Thanks in advance.

When a site doesnt work, go to the command prompt and ping the site using the URL. If it doesnt work, ping the site's IP. If it works, then it's really a DNS problem. Check if you have entered any DNS-Servers in your LAN-connection.




Michael

Thanks for your help.

I have no DNS servers are entered in my LAN connections.

When I ping the sites that aren't working by URL and IP I get the same message... eg - the one below.


C:\>ping yahoo.com

Pinging yahoo.com [216.115.108.243] with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 216.115.108.243:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

I can think of 3 things:

1. Firewall blocking traffic (would be a little bit odd though):

Disable all running firewalls and redo the ping-test.


2. Malware on your computer

Check your system with an updated trial version of Kaspersky Personal 5.0 ->
http://www.softpedia.com/get/Antivir...Personal.shtml


3. MTU too high.

http://kbserver.netgear.com/kb_web_files/n100603.asp



Hope it helps,


Michael