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| faq_synchronize 2012-05-07 | faq_synchronize 2024-01-22 (current) | ||
| Line 5: | Line 5: | ||
| * Changed files are transferred only sometimes. | * Changed files are transferred only sometimes. | ||
| - | In all above cases the problems is usually caused by WinSCP not correctly [[timestamp|converting timestamps]] from local conventions to remote server conventions and vice versa. | + | ~~AD~~ |
| - | Also with [[ftp|FTP protocol]], the server may not support [[ui_transfer_custom#common_options|preserving timestamps]] of uploaded files. Usage of synchronization in local to remote direction is limited then. | + | Actions/Checks to do to resolve the synchronization problems: |
| - | + | * In all above cases the problems is usually caused by WinSCP not correctly [[timestamp|converting timestamps]] from local conventions to remote server conventions and vice versa. | |
| - | See [[timestamp|documentation]] to learn about possible problems with timestamps. | + | * See [[timestamp|documentation]] to learn about other possible problems with timestamps. |
| + | * Learn how to [[troubleshooting#timestamps|troubleshoot issues with timestamps]]. | ||
| + | * Also with [[ftp|FTP]] and [[webdav|WebDAV]] protocols, the server may not support [[ui_transfer_custom#common|preserving timestamps]] of uploaded files. Usage of synchronization in local to remote direction is limited then. | ||
| + | * Also note that [[ui_transfer_custom#filename_modification|filename modification]] logic for file transfers applies also, when comparing files for synchronization. So file names with special characters that are seemingly different may actually be considered the same by WinSCP. | ||
| + | ··* Another possibility is that you have enabled [[ui_synchronize#criteria|//Size// synchronization criteria]] and also //Text// (or //Automatic//) [[transfer_mode|transfer mode]]. Those cannot work together, as file size changes in the //Text// transfer mode. | ||