Received unexpected end-of-file from SFTP server

[james]

Random instances of uploading using SFTP on a CUSTOM PORT working fine then upon a single or multiple file upload, we receive this message.

07:37:44 Error: Received unexpected end-of-file from SFTP server
07:37:44 Error: Could not connect to server
07:37:44 Status: Delaying connection for 5 seconds due to previously failed connection attempt...

Repeated a few times in message window.

We are using iMacs running 10.7 10.8 running latest Filezilla 3.11.0.1
This began happening in previous version.

Generally we have to wait 5-10 minutes or so and after many reconnection/restart attempts we can again upload for a while.
Seems to not matter how many or how few people are connected.

PERMISSIONS being set
As a side note we are now also seeing files we upload all having no read or write permissions. We have to manually reset permissions.
Server is a Dedicated Linux server we have been using in this way for a few years without these issues.

[james]

version info

[james]

error message

[Tim Kosse]

Please post a complete log of this error happening, the last three lines do not carry enough information.

As a side note we are now also seeing files we upload all having no read or write permissions. We have to manually reset permissions.

There had been a permission handling issue in 3.10.0 and 3.10.0.1 but that one has already been fixed some time ago in 3.10.0.2

[james]

I'll try to reproduce it again today but the message log is simply more instances of the same three lines as it repeats a few times then stops. Only other info was the ip address and port I am connecting to.
As to the permissions issue. I pasted the version info and my OS and environment info. This issue must still exist at least in my environment.

[Tim Kosse]

Permissions are preserved when uploading. Which permissions do the source files have on your local system?

[james]

Maybe that is what changed in recent versions to handle permissions? In the past we never had to concern ourselves with what our local permissions were on files.

Now if I try to upload a certain image, (let's say) using Filezilla, the permissions are set to -rw-r----such that it is not Publicly Readable giving me permission error pages.

If I then upload that same image in Cyberduck, the file is Publicly Readable and permissions are set to -rw-r--r--
Making php, html and image files publicly "visible" and all works well.

This was not an issue until the last previous update 3.10.xx I believe.
I understand what you are saying however I wonder why this is not an issue using other applications and it was not an issue until recent updates to Filezilla. WE have used Filezilla for many years.
Thanks