如果是使用路由器上网，在路由器里面设置一条8333的转发规则就可以了。
In both your cases, did you login to your router and setup port forwarding from the internet to the internal LAN IP of your PC with bitcoin? From the noob guides I read it said that it's not required, however, after I installed bitcoin on win7 I was stuck at 0 connections for a while. As soon as I setup port forwarding / tcp / 8333 to the internal IP I saw a dozen connection come in at once.
因为有时候确认交易的时候如果用vpn确认速度会很快，而且用vpn访问deepbit这种矿池速度也很快。