Start > windows search >type "cmd" > at win syst 32 prompt type "ipconfig /flushdns" press enter
ofc you will be typing without quotation marks
response should be "dns cache flushed successfully".
Close dos/admin window then try to reconnect you may have corrupt dns cache this will fix that at least and if that was the prob (could be) it will fix it. Windows will re build the dns cache file .
Edited by tubetwister - 10/24/13 at 11:56pm