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More about the situation:
I have my dns set to and so these are probably fine
communicator (skype/facebook chat) and all four web browsers in my system have no problem with dns resolving (and, as far as I can tell) they are using the same dns as the rest of the system
ipconfig /flushdns did nothing
also, this most probably have nothing with local network, because same thing happens in my home and in my job (same laptop)
trying curl gives me error curl: (6) Could not resolve host:
it's very annoying, because I can't do almost anything from the cmd (curl/composer/php net functions - all are not working) and also in the e.g. FTP clients I have to set IP address instead of domain name

BTW tracert and ping have no problems with DNS
hosts file is empty
any ideas? I'm trying to fix this for a few days and as of now I wasn't able to find anything helpful.
nslookup gives:

Server:  UnKnown

Non-authoritative answer:
Addresses:  2a00:1450:4001:c02::65

curl and curl gives the same; it's not so stupid I think :) anyway curl is just example of sth network-based

share|improve this question
Try nslookup – Ƭᴇcʜιᴇ007 Jul 10 '14 at 11:47
have you tried ? I don't use curl on windows, but points to a 301 redirect, to curl may not be able to follow it to the destination. – Frank Thomas Jul 10 '14 at 11:49

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