Console error message: mDNSResponder[19]

[Grant]

the full message:

mDNSResponder[19]
mDNSPlatformUpdateProxyList: IPV6_JOIN_GROUP error -1 errno 47
(Address family not supported by protocol family) group FF02:0000:0000:0000:0000:0001:FFDC:7514 on 5

this has been coming up quite regularly recently, along with an internet connection "freeze"

any idea as to what is going on here & how to resolve it ?

 

[Anthro]

Bonjour is kinda Apple's "phone home, / phone the other instances" service
Try reinstall your iTunes components yet ?