[APS]

Just to confuse matters, it should be known that although DNS servers and Web proxy servers have separate functions, most Web proxies (and even some web browsers) cache DNS lookup information. This can make it pretty confusing when it comes to trying to track down these problems.


As an example a few months ago when NTLs DNS servers were effectively dead from here, you could still browse to certain web sites if you picked specific NTL proxies. This only worked for common websites and as time went on stopped working, I guess because the proxy DNS cache timed out the cached DNS entries and tried to refresh the entries.

Entering alternative DNS servers in your own settings can often fix NTL DNS problems but not always. I guess it depends on the priority of lookups which I have yet to fathom out.

APS