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2, but my friend ali cloud server () is a classic network, is to be able to use Windows explorer connection, FlashFXP also can connect, I found that the difference is: the server with me listen port 21 local IP is the network IP
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And I this show is in the Intranet IP, so can't use Windows explorer connection
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3, I tried to add local connection to the network IP
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Then on the Server - U IP for the network IP
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Find in listening port 21 local IP into the network IP
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4, console security group into the direction of the two servers are open to all ports, the Windows firewall is shut down, Server -u Settings are the same, I doubt because my Server is a private network, can whether by the proprietary network into a classic network? (proprietary network is better, to do not use this way), can you help me to realize using Windows explorer can also access the FTP?