too far away

What is the meaning of "too far away" I'm receiving while trying to Trackback ping Typepad blogs?

Pinging http://www.typepad.com/t/trackback/3427348...
Problem: Server said 'Server IP 72.9.234.70 is too far away from source URL IP 66.102.15.101'

Should I be next door to talk about them? Technorati tags: typepad, ping, trackback.