....
I have the same problem - the websites I cannot access are
www.thomascook.com
FWIW my first nslookup for this timed out twice, forcing me to reissue it.
If that is happening to you too, repeatedly, it would explain your symptom.
In that case you might have to insert an entry in your HOSTS file to
substitute:
E.g based on my nslookup response
<response>
Non-authoritative answer:
Name:
www.thomascook.com
Address: 146.101.166.200
</response>
you would add the following line to your HOSTS file
<example>
146.101.166.200
www.thomascook.com
I didn't have any trouble with the lookup for that one
<response>
Non-authoritative answer:
Name:
www.manchesterairport.co.uk
Address: 194.73.163.130
I know both sites are up and running as I
can easily access them from another PC - just not able to on mine.
That doesn't answer the first question the responder asked:
E.g. does the other PC get the same DNS addresses?
Hint: in a cmd window on each computer enter
ipconfig /all
then do a right-click, Find (Up) Servers to see DNS Servers addresses
each use. If they aren't at least from the same site your comparison
would just mean that one was more reliable than the other (at least for
the problem lookups).
Similarly if they both have different HOSTS file entries
such that one uses an override but the other doesn't
you would also not have a fair comparison (but might
have an explanation for why one works and the other
doesn't).
or more frequently I get a invalid syntax error.
That's a good clue. I have seen that response to telnet 80 simulations.
Evidently some sites do not like us using HTTP 1.0 and assume HTTP 1.1
and may react strangely if that is not used. So make sure that you are using
HTTP 1.1 in all cases (e.g. via Options, Advanced tab, Browsing section)
Good luck
Robert Aldwinckle
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