Error 11002 means that some or all of the DNS servers which were queried along the way did not respond within the time out. The 'host not found' error comes not because it was not in the DNS directory but because some server didn't respond. The error "host not found" is thus non authoritative. Please make sure the host name is recognized, or provide an ip address instead.

The DNS system works like the directory system: you query the operator, he asks another if it is out of town and maybe a third one if that's an international number.

Short solution: try a second time, maybe Winsock didn't wait long enough. If problems remain, there may be a problem with the internet connection, the network, etc.