http://dns.squish.net

100% resulted in an exception
Results
50.0% recvfrom failed from 94.2.xx.xx; Coection refused - recvfrom(2) at ns1.xx.com (94.2.xx.xx)
50.0% recvfrom failed from 94.2.xx.xx; Coection refused - recvfrom(2) at ns2.xx.com (94.2.xx.xx)

how can i solve?