You do not have 'file read errors'. As can be seen in bpbkar log, you have 'socket write error':
Exception of type [SocketWriteException]
> tar_tfi::processException:
An Exception of type [SocketWriteException] has occured at:
Module: @(#) $Source: src/ncf/tfi/lib/TransporterRemote.cpp,v $ $Revision: 1.51 $ , Function: TransporterRemote::write[2](), Line: 307
Module: @(#) $Source: src/ncf/tfi/lib/Packer.cpp,v $ $Revision: 1.85 $ , Function: Packer::getBuffer(), Line: 659
Module: tar_tfi::getBuffer, Function: H:\701\src\cl\clientpc\util\tar_tfi.cpp, Line: 296
Local Address: [0.0.0.0]:0
Remote Address: [0.0.0.0]:0
OS Error: 10054 (An existing connection was forcibly closed by the remote host.)
You will need bpbrm log on media server as well.
I have seen similar errors resolved when NIC in media server was replaced.