Poster did not get a reply . I would contact chat if necessary u escalate it if original tech confuse dre what Zune is.
Chat via technical suport link in Useful links tab above.
http://support.microsoft.com/kb/940705?sd=zune probably not it maybe you need to allow a port access...
Any update for the zune software?
It is not a WP7 or Zune issue. I figured it out on my own. I configured my WP7 to use a static IP adresss when connected to Wi-Fi. I assigned specific IP permissions for the adress in McAfee Firewall configuration.
I had reviewed those articles prior to adding the static address to my phone.
That is worth knowing thanks
I too have been suffering from this issue since I installed AntiVirus Plus. I hit the "Reset to Defaults" button for the firewall module and the Zune immediately began synchronizing over my wireless network as if it never had a problem.