ERROR #7500: SSH Put Error '-2146430933': SSH Error [8010102B]: channel read [FFFFFFFF8010102B] at SFTP.cpp:559,0',code=0)

Hello All,

I am able to transmit a small batch of billing files: B/W 5 and 20 without issue- 
Put stream 11@%IO.LibraryStream to /SFTP/unmhsmcsa/OUT/TEST_021920201426.tst  

But when the size of the batch increases to over 20 the operation hangs and I receive the error below:   The file is created in the SFTP server with 0 data.

ERROR <Ens>ErrFTPPutFailed: FTP: Failed to Put file 'TEST_022020201014.tst'
(msg='Error in SFTP Put('/healthshare/db/mgr/Temp/H8XaLoZgkYFkNQ.sftp','/SFTP/unmhsmcsa/OUT/TEST_022020201014.tst') ERROR #7500: SSH Put Error '-2146430933': SSH Error [8010102B]: channel read [FFFFFFFF8010102B] at SFTP.cpp:559,0',code=0)  

Any help is appreciated.
 

Below are my settings

I changed the stay connected to 10 and  received the same result
 

Thank you very much