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They are all using the same Docker version of the database.

Hello, thank you for your feedback.

The "Network Error" occurs because the backup file needs to be uploaded directly from your browser to cloud storage. If your network connection to the overseas storage node is unstable, this error will occur.

You can try the following alternative to migrate data directly between the two databases without uploading files through the browser:

1. Enable port forwarding on the "Network" page of both the source and target databases to obtain the external connection addresses.
2. Execute the following in your local terminal:

pg_dump "postgresql://postgres:source_password@source_host:source_port/postgres" | psql "postgresql://postgres:target_password@target_host:target_port/postgres"

This way, the data is transferred directly from the source database to the target database without passing through the browser.