Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

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 have a pair of Windows XP computers that are connected by Ethernet cables to the same hub and they are in the same subnet (, but they cannot ping each other. When I do attempt the ping, the requests time out but the arp cache gets an entry with the correct IP/MAC address pair. What could cause this to happen?

share|improve this question
up vote 4 down vote accepted

Is the Windows firewall or a third party firewall turned on? That would block ICMP.

share|improve this answer
This was the problem. The firewalls on both computers (McAfee in this case), were set up to block incoming ping requests. – yalehookeye Mar 9 '12 at 20:00

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .