I keep getting failure on some PE2600 ERA when trying to upgrade to the latest firmware. the problem occurs on a range of firmware versions from 3.35 upwards. i'm trying to apply v3.38

error is that unable to ftp image to device when using windows based update package. i have tried logging on to the rac to update via tftp server using the firmware image file but this also fails.

any help appreciated before i have to end up calling tech support line.