Cpanel Backup Unable to send File to ftp

Just-hosted

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Jun 24, 2014
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having an issue with Cpanel Backup, the backup completes but fails to send all the files to my ftp server.

at first I thought It was the Maximum destination timeout since a couple of accounts are fairly large but I upped that to something like 6hours and I am even seeing very small accounts have the same issue failing within an hour or so..

here is the error I'm seeing in /usr/local/cpanel/logs/cpbackup_transporter.log it does this 3 times and then it moves on.

Code:
[2016-06-08 06:57:46 -0400] warn [cpbackup_transporter] Upload attempt failed: Couldn't write to remote file: Failure at /usr/local/cpanel/Cpanel/LoggerAdapter.pm line 27.
	Cpanel::LoggerAdapter::warn(Cpanel::LoggerAdapter=HASH(0x3636018), "Upload attempt failed: Couldn't write to remote file: Failure") called at /usr/local/cpanel/Cpanel/Backup/Queue.pm line 492
	Cpanel::Backup::Queue::transport_backup::attempt_to_upload_file(Cpanel::Backup::Queue::transport_backup=HASH(0x3e5c2c0), Cpanel::Transport::Files::SFTP=HASH(0x48d3788), "/home/backup/2016-06-08/accounts/ACCOUNTBACKUP.tar.gz", "/home/backup/2016-06-08/ACCOUNTBACKUP.tar.gz", Cpanel::LoggerAdapter=HASH(0x3636018)) called at /usr/local/cpanel/Cpanel/Backup/Queue.pm line 254
	Cpanel::Backup::Queue::transport_backup::process_task(Cpanel::Backup::Queue::transport_backup=HASH(0x3e5c2c0), cPanel::TaskQueue::Task=HASH(0x48d7628), Cpanel::LoggerAdapter=HASH(0x3636018)) called at /usr/local/cpanel/3rdparty/perl/522/lib64/perl5/cpanel_lib/cPanel/TaskQueue.pm line 585
	eval {...} called at /usr/local/cpanel/3rdparty/perl/522/lib64/perl5/cpanel_lib/cPanel/TaskQueue.pm line 588
	cPanel::TaskQueue::__ANON__() called at /usr/local/cpanel/3rdparty/perl/522/lib64/perl5/cpanel_lib/cPanel/StateFile.pm line 238
	eval {...} called at /usr/local/cpanel/3rdparty/perl/522/lib64/perl5/cpanel_lib/cPanel/StateFile.pm line 238
	cPanel::StateFile::Guard::call_unlocked(cPanel::StateFile::Guard=HASH(0x48d7610), CODE(0x450cba8)) called at /usr/local/cpanel/3rdparty/perl/522/lib64/perl5/cpanel_lib/cPanel/TaskQueue.pm line 593
	cPanel::TaskQueue::process_next_task(cPanel::TaskQueue=HASH(0x417d678)) called at /usr/local/cpanel/bin/cpbackup_transporter line 151
	eval {...} called at /usr/local/cpanel/bin/cpbackup_transporter line 149
It seems to do this with random accounts regardless of the size..
for the sake of having complete offsite backups for all my accounts I want to get this fixed.
 

Infopro

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May 20, 2003
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Well, I'm no expert on these logs but:
Upload attempt failed: Couldn't write to remote file
Tells me its not random, for some reason the backup fails, or times out while trying to do its job.

I think I'd test to make sure it can do its job first. If it works once, does it work twice? If it works twice, does it work with a very large account as well? Can any backup you force write at all to the remote server?