WPMU Domain not pinging

It’s not a redirect issue. I am also unable to ping the www-version of your site as well. Just to test, I also tried to ping your site’s IP address directly … and it also times out.

This could be because your server doesn’t allow pings.

Some servers are set up to block ICMP traffic by default. A ping doesn’t come over as normal HTTP traffic to port 80. It comes in as an ICMP message and is echoed by the server back to the requester.

From the looks of things … this is disabled on your server. You need to work with a sysadmin to enable pings.

Further reading: