wierd DNS problem

[theotherallenbrown]

I can't work this one out.

I have a PC where Firefox, Safari and Subversion (Tortoise) can happily access the Internet but IE6 and IE7 both say they can't find a DNS server and Dreamweaver says it can't resolve a domain name. I can live without IE7 but I rather like Dreameaver.

I've flushed caches, replaced network cards, reinstalled IE7, used OpenDNS and everything else that's been recommended to me but I'm still in the same place. Before I throw the whole PC away, can any of you experts suggest what this could be?

Many thanks

Allen

 

[paella33]

Invalid proxy settings?

 

[GlenJohnson]

Is this a sole pc, or is it on a network? If you plan on just throwing it away, why not just wipe out the hard drive and start over?

 

[theotherallenbrown]

Thanks Paella - the proxy settings in IE are blank

Glen - it's on a network. The other PCs sharing a web connection all work fine.

 

[stfaprc]

for the domain name that Dreamweaver says it can not resolve,
do a 'tracert domain_name' from a command prompt.

 

[theotherallenbrown]

I did that and got a time out half way through. Not really sure how to interprete this. I've disguised the domain name so as not give away any client info:


Tracing route to ftp.clientsitename.net [213.171.193.5]
over a maximum of 30 hops:

1 1 ms <1 ms <1 ms 192.168.0.1
2 26 ms 24 ms 27 ms lo98.gr-acc-bras-12.as9105.net [212.74.102.27]
3 26 ms 24 ms 26 ms 10.72.4.175
4 28 ms 26 ms 24 ms 10.72.4.124
5 31 ms 25 ms 24 ms xe-1-3-0.lon20.ip.tiscali.net [213.200.79.181]
6 28 ms 28 ms 26 ms xe-6-3-0.lon10.ip.tiscali.net [89.149.187.101]
7 27 ms 24 ms 25 ms telewest-gw.ip.tiscali.net [213.200.78.38]
8 35 ms 38 ms 37 ms gsr-hsd-gw1-pos00.inet.ntl.com [194.117.136.173]

9 33 ms 142 ms 37 ms nassau-pos20.inet.ntl.com [194.117.136.1]
10 32 ms 31 ms 32 ms osr01azte-ge47.inet.ntl.com [195.188.230.17]
11 33 ms 31 ms 31 ms osr01stav-tenge71.inet.ntl.com [195.188.230.50]

12 * * * Request timed out.
13 34 ms * 32 ms 213.171.217.3
14 31 ms 32 ms 31 ms ftp.clientsitename.net [213
.171.193.5]

Trace complete.

What is this telling me?

 

[elgrandeperro]

Is this from a bad pc or a good one? See, the traceroute shows one can do a reverse resolution. I would lean toward some spy ware or mal ware that is installed, (provided you can "ping IPOFDNSSERVER" and can "nslookup

http://www.yahoo.com

IPOFDNSSERVER" then you can reasonably assume that DNS should work and some other force is at work.

 

[stfaprc]

or it could just be a lousy connection point between you and your client. try to do the tracert from your pc at home.

 

[theotherallenbrown]

Thanks guys. But I'm still struggling to understand how this could effect IE and Dreamweaver but not effect other apps such as Firefox, Safari, iTunes and Tortoise.

 

[elgrandeperro]

Don't know about DreamWeaver, but the IE would use registry settings for settings like proxies, things that spyware would change. Things like nslookup do not use the registry. So if nslookup and ping is working correctly, then I suspect something in the registry.