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I uploaded five files to the FileZilla server on my Mac, but it always fails to complete. I can’t figure out what happened on my server side or client side. The log has been displaying the issue for two days as below. Thanks.

14/03/2024
Server：https://docs.google.com/document/d/13hF ... drive_link
Client：https://docs.google.com/document/d/1pYZ ... drive_link

15/03/2024
Server：https://docs.google.com/document/d/1O2s ... drive_link
Client：https://docs.google.com/document/d/1XHa ... drive_link

My first step would be to set the Debug level to the maximum (5) and then examine the server log.

You are not using FTP over TLS. Please change the protocol to explicit FTP over TLS and try again.

Could you provide any references for this?
I am unable to use the FTP over TLS protocol on client site.
I think I need to configure the server settings.
But I am not sure how to implement this.
Thank you.

What makes you unable to do that? Do you get an error? What kind of error? On the server side, you need to select the "Explicit FTP over TLS and insecure plain FTP" for the listeners you've configured, in the "Server listeners" section of the settings dialog.

I have no idea how to implement this.
The log form client and server site as below.
Thank you.

18/03/2024
Server：https://docs.google.com/document/d/1Bhk ... drive_link
Client：https://docs.google.com/document/d/1l4A ... drive_link

Make sure to configure the server as well as any firewalls and NAT routers correctly. Please refer to our Network Configuration guide for detailed instructions. You can test your server on https://ftptest.net/

Hi Sir,

I attempted to use FTP over TLS and encountered some unusual behavior. Transfers from the external network, whether uploads or downloads, were completed without issue. Downloading files from the internal network also proceeded smoothly. However, I am unable to upload more than two files to the server from the internal network. Below is the log that details the experiences I've described. Thank you.

Log_20240327_Upload_2_20G_internal_to_internal_cable
Server：https://docs.google.com/document/d/1eep ... b3KjU/edit
Client：https://docs.google.com/document/d/1Zw5 ... JNieg/edit

Log_20240327_Upload_2_20G_internal_to_internal_wifi
Server：https://docs.google.com/document/d/1GTK ... hn544/edit
Client：https://docs.google.com/document/d/1JIG ... UIoBs/edit

Log_20240327_Upload_5_900M_internal_to_internal_cable
Server：https://docs.google.com/document/d/1t6N ... NLiQk/edit
Client：https://docs.google.com/document/d/1NzB ... LZal0/edit

Log_20240327_Upload_5_900M_internal_to_internal_wifi
Server：https://docs.google.com/document/d/1mcE ... sOBZY/edit
Client：https://docs.google.com/document/d/1YPn ... S7hiM/edit

Log_20240327_Upload_6_2G_internal_to_internal_cable
Server：https://docs.google.com/document/d/1Ior ... 9AJH4/edit
Client：https://docs.google.com/document/d/1GvM ... v0Frc/edit

Log_20240327_Upload_6_2G_internal_to_internal_wifi
Server：https://docs.google.com/document/d/13bQ ... FsfCk/edit
Client：https://docs.google.com/document/d/1wHI ... VqlHg/edit

You seem to have too few passive mode ports configured. Rule of thumb: The passive mode port range should be at least as large as the number of transfers done in 4 minutes.

Hi,

I've configured additional ports, ranging from 49152 to 65534, and have also allowed these ports through the firewall. However, the connection still fails.
The logs are as follows.
Thanks.

Log_20240329_Upload_6_2G_internal_wifi
Server：https://docs.google.com/document/d/1Oo4 ... 3eh1w/edit
Client：https://docs.google.com/document/d/1vJv ... LPbYI/edit

Hi,
Is the issue just happened on macOS ?