Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am encountering very strange problem, I'm unable to resolve any * domain names. Other domain names ending with .com, .net etc are fine.

  • Pinging domain names like gives Ping request could not find host Please check the name and try again straight away
  • I'm using a company PC on a network (we don't use proxies) and my colleagues on the same network can resolve * fine
  • Ok, maybe it's my PC's DNS cache, I then tried rebooting, running ipconfig /flushdns, none helps
  • If I ping the the IP number directly it replies fine (eg: for
  • I've checked my C:\Windows\System32\Drivers\etc\hosts file and no rules related to * exists there
  • I've cross checked my network connection settings with my colleagues and they're all matches

Is there anything else I can do to debug this mysterious problem? I'm on Windows 7 Professional.

share|improve this question

migrated from Mar 16 '13 at 16:47

This question came from our site for system and network administrators.

up vote 3 down vote accepted

Try to resolv domain name via several DNS server, for example via Google public DNS: nslookup It could help investigate the issue.

share|improve this answer
Ah thanks, didn't know nslookup can be used against another DNS server. The problem mysteriously goes away after a night, I think it's a problem with DNS caching mechanism on my PC / our network router – gerrytan Mar 13 '13 at 21:37
do an ipconfig /flushdns in an elevated command prompt – pratnala Mar 16 '13 at 16:48

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.