FTP 110 Restart Marker Reply vs 426 Connection Closed
FTP 110 (Restart Marker Reply) is a 1xx Positive Preliminary response, while 426 (Connection Closed) is a 4xx Transient Negative response. 110 indicates that the server is sending a restart marker reply. The text is exact and not left to interpretation. This marker is used to indicate the point at which a file transfer should be restarted. In contrast, 426 means that connection closed; transfer aborted. The data connection was closed unexpectedly during a file transfer.
Mô tả
The server is sending a restart marker reply. The text is exact and not left to interpretation. This marker is used to indicate the point at which a file transfer should be restarted.
Khi bạn thấy mã này
During a resumed file transfer when the server confirms the restart position in the data stream.
Cách khắc phục
No fix needed — this is a normal response during transfer recovery. If restarts keep failing, verify the marker format matches what your client expects.
Mô tả
Connection closed; transfer aborted. The data connection was closed unexpectedly during a file transfer.
Khi bạn thấy mã này
When a file transfer is interrupted due to a network timeout, client disconnect, or the data connection dropping mid-transfer.
Cách khắc phục
Retry the transfer. If it keeps failing, check network stability, increase timeout values, and verify there are no firewalls killing idle connections.
Sự khác biệt chính
110 is a 1xx Positive Preliminary response, while 426 is a 4xx Transient Negative response.
FTP 110: The server is sending a restart marker reply. The text is exact and not left to interpretation. This marker is used to indicate the point at which a file transfer should be restarted.
FTP 426: Connection closed; transfer aborted. The data connection was closed unexpectedly during a file transfer.
You encounter 110 when during a resumed file transfer when the server confirms the restart position in the data stream.
You encounter 426 when when a file transfer is interrupted due to a network timeout, client disconnect, or the data connection dropping mid-transfer.
Khi nào dùng cái nào
For 110 (Restart Marker Reply): No fix needed — this is a normal response during transfer recovery. If restarts keep failing, verify the marker format matches what your client expects. For 426 (Connection Closed): Retry the transfer. If it keeps failing, check network stability, increase timeout values, and verify there are no firewalls killing idle connections.