it's same in win7 32bit ,just can't sync. i had disabled uPnp and firewall is shutdown. I try to connect through socks proxy,but it still faild.The socks version is turn to 5.
Oh, so maybe it's something in your proxy.
Can you test without proxy, or do you need it for your all internet connections?
Thanks for your reply,i had tested without proxy in different place,my office and my home all can't sync.
no seriours.. sorry I can't help you