I downloaded the update-file and compared the number of bytes, so it seems to be a valid file.
When I try to upload the file to the ACC, I get a changing percentage of upload and then the system dies. No more response in webadmin.
After a couple of minutes, I can reenter the webadmin, but nothing is changed.
Even, when I look at /var/up2date, there is no partial uploaded file.
My ACC is running in vmware server 2.0 with 512MB RAM dedicated for this machine.