apt-get update:Data connection closed

[Luis Enrique Pomares Nuñez]

Hello list
I had installed a workstation lPC ubuntu 10.04, the problem is whe i run

sudo apt-get update; apt-get -dy dist-upgrade
Get:1 ftp://ftp.icccv.sld.cu oneiric Release.gpg [198B]
Get:2 ftp://ftp.icccv.sld.cu/repositorios/oneiric/ oneiric/main 
Translation-en_US
Ign ftp://ftp.icccv.sld.cu/repositorios/oneiric/ oneiric/main Translation-
en_US
Get:3 ftp://ftp.icccv.sld.cu oneiric Release [40.8kB]
Ign ftp://ftp.icccv.sld.cu oneiric Release
Get:4 ftp://ftp.icccv.sld.cu oneiric/main Packages [1,226kB]
Ign ftp://ftp.icccv.sld.cu oneiric/main Packages                               
Get:5 ftp://ftp.icccv.sld.cu oneiric/main Packages
Ign ftp://ftp.icccv.sld.cu oneiric/main Packages
Get:6 ftp://ftp.icccv.sld.cu oneiric/main Packages [1,583kB]
Err ftp://ftp.icccv.sld.cu oneiric/main Packages
  Data transfer failed, server said 'Data connection closed, file transfer 
packages.gz aborted.  '
Fetched 198B in 29s (7B/s)   
W: Failed to fetch 
ftp://ftp.icccv.sld.cu/repositorios/oneiric/dists/oneiric/main/binary-
i386/Packages.gz  Data transfer failed, server said 'Data connection 
closed, file transfer packages.gz aborted.  '

E: Some index files failed to download, they have been ignored, or old 
ones used instead.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgrade

When i change the source.list to http method the error occours too, when 
is go to web browser to download the package.gz the browser showme an 
error too, i traced the logs error on the server side so seem to be a 
client side error.
I try with a virtual machine and curiosly all work fine! 
i try with ubuntu 12.04 and the same error happen on my machine but on a 
virtual machine work fine, my source.list is OK but i tested it on the 
virtual machine al update, upgrade successfully.
help me

sorry abaut my english.