![]() ![]() And, the server log s(/var/log/messages) show this error. This error can occur when the FTP server can’t determine the IP address of the server by the hostname. Now, let’s discuss the common reasons for this error and how our Dedicated Engineers fix them. FTP clients such as Filezilla returns the error like this: 421 Service not available, remote server has closed connection.įTP error 421 service not available – Causes & Fixes But, this condition is temporary, and the action may be requested again.Īnd, FTP error 421 service not available means that the connection to the remote server can’t be established. Today, let’s discuss the top 3 reasons for this error and how we fix them.įTP error 421 service not available – A Quick GlanceįTP error code 4xx means that the connection hasn’t been attempted and the requested action hasn’t taken place. One such FTP error is “ 421 service not available“.Īt Bobcares, we help server owners resolve such FTP errors as part of our Dedicated Support Services. And, it becomes more troublesome when you spend the whole day resolving these errors.
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