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Issue Backup-Manager: Unable to upload the backup to the external storage

Hej,

with onedrive configured as an external storage backup manager got following errors message:

Warning:
Unable to upload the backup to the external storage: Transport error: Failed to write a file to an external repository, see the log files


Content of the log files is:

WARNING: () Unable to upload the backup to the external storage: Transport error: Failed to write a file to an external repository, see the log files

Somone has an idea how to solve this?
 
Have you verified that you could manually upload a file to your external storage space? For example using

curl -v -k --ftp-ssl ftp://xxx.xxx.xxx.xxx//backups/ --user <ftpuser>:<ftp_pass> --upload-file backup.zip
 
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