为什么FileZilla自上周开始在目录列表上开始超时？

FileZilla版本3.10始终能够在GoDaddy上列出我域上的文件和目录，直到上周五。现在它在LIST命令之后超时。

我检查了GoDaddy支持，他们能够使用FileZilla FTP我的域没有问题。

我尝试重新安装FileZilla。我检查了Windows防火墙，发现FileZilla存在异常，并且有入站和出站端口的规则。我在我的Xfinity路由器中为FTP端口创建了一个规则。

我在我的局域网上的另一台计算机上安装了FileZilla，它具有相同的超时。会话的调试日志是：

2015-07-05 14:23:44 59416 1 Status: Disconnected from server
2015-07-05 14:23:48 59416 1 Status: Connecting to xx.xx.xxx.xxx:21...
2015-07-05 14:23:48 59416 1 Status: Connection established, waiting for welcome message...
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 220 Microsoft FTP Service
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Command: AUTH TLS
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 234 AUTH command ok. Expecting TLS Negotiation.
2015-07-05 14:23:48 59416 1 Status: Initializing TLS...
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::Handshake()
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::ContinueHandshake()
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::ContinueHandshake()
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::ContinueHandshake()
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::ContinueHandshake()
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::ContinueHandshake()
2015-07-05 14:23:48 59416 1 Trace: CTlsSocket::ContinueHandshake()
2015-07-05 14:23:48 59416 1 Trace: TLS Handshake successful
2015-07-05 14:23:48 59416 1 Trace: Protocol: TLS1.0, Key exchange: RSA, Cipher: AES-128-CBC, MAC: SHA1
2015-07-05 14:23:48 59416 1 Status: Verifying certificate...
2015-07-05 14:23:48 59416 1 Status: TLS connection established.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Command: USER XxxXsssss
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 331 Password required for KenFowler.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Command: PASS *************
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 230-FTP-SSL (AUTH TLS, Explicit FTPS or FTPES) security is available
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 230 User logged in.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Command: OPTS UTF8 ON
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 200 OPTS UTF8 command successful - UTF8 encoding now ON.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Command: PBSZ 0
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 200 PBSZ command successful.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Command: PROT P
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 200 PROT command successful.
2015-07-05 14:23:48 59416 1 Status: Connected
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::ResetOperation(0)
2015-07-05 14:23:48 59416 1 Trace: CControlSocket::ResetOperation(0)
2015-07-05 14:23:48 59416 1 Trace: Measured latency of 64 ms
2015-07-05 14:23:48 59416 1 Status: Retrieving directory listing...
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::ChangeDirSend()
2015-07-05 14:23:48 59416 1 Command: PWD
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 257 "/" is current directory.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::ResetOperation(0)
2015-07-05 14:23:48 59416 1 Trace: CControlSocket::ResetOperation(0)
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::ParseSubcommandResult(0)
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::ListSubcommandResult()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::TransferSend()
2015-07-05 14:23:48 59416 1 Command: TYPE I
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 200 Type set to I.
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::TransferParseResponse()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::TransferSend()
2015-07-05 14:23:48 59416 1 Command: PASV
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:48 59416 1 Response: 227 Entering Passive Mode (97,74,215,122,198,113).
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::TransferParseResponse()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:48 59416 1 Trace: CFtpControlSocket::TransferSend()
2015-07-05 14:23:48 59416 1 Command: LIST
2015-07-05 14:23:49 59416 1 Trace: CFtpControlSocket::OnReceive()
2015-07-05 14:23:49 59416 1 Response: 150 Opening BINARY mode data connection.
2015-07-05 14:23:49 59416 1 Trace: CFtpControlSocket::TransferParseResponse()
2015-07-05 14:23:49 59416 1 Trace: CFtpControlSocket::SendNextCommand()
2015-07-05 14:23:49 59416 1 Trace: CFtpControlSocket::TransferSend()
2015-07-05 14:24:09 59416 1 Error: Connection timed out after 20 seconds of inactivity
2015-07-05 14:24:09 59416 1 Trace: CFtpControlSocket::ResetOperation(2114)
2015-07-05 14:24:09 59416 1 Trace: CControlSocket::ResetOperation(2114)
2015-07-05 14:24:09 59416 1 Trace: CFtpControlSocket::ResetOperation(2114)
2015-07-05 14:24:09 59416 1 Trace: CControlSocket::ResetOperation(2114)
2015-07-05 14:24:09 59416 1 Error: Failed to retrieve directory listing
2015-07-05 14:24:25 59416 1 Status: Disconnected from server

回复我自己的帖子，因为我发现了一个修复程序。

由于在两台计算机和两台连接到本地路由器/ Cablemodem的FTP程序上都可以看到症状，因此我将其置于路由器防火墙上。我发现Xfinity路由器防火墙设置为中等安全性。中等级别设置为阻止各种端口上的对等访问。我相信FTP服务器正在选择这些范围内的端口进行数据传输。

由于无法编辑“中级”条件，因此我选择使用“自定义”级别。我将其设置为允许所有端口上的对等访问 - 唯一可用的选择 - 并且解决了我的FTP客户端问题。

我很困惑为什么FTP工作在中等安全级别上直到上周。我认为Comcast / Xfinity必须推出对调制解调器的改变。我知道Xfinity上周推出了一个新的证书，暂时阻止我发送邮件。

希望这有助于某人。

是的...我有像你这样的经历。我下载了最新的Filezilla版本，无法连接到我的服务器。您需要找到禁用SSL选项的设置。或者我建议您使用以前的Filezilla版本。我使用Filezilla 3.8，它在我的最终工作正常。