Bios Update Failing R710 - USC - Catalog File Not Found

Hi there,

I'm trying to upgrade the bios on an older R710 we have in our cabinet.  I have recently upgrade 3 new R710 servers in our solution using the same method and this worked fine.  

Here's the steps I am taking:

- Using the DRAC card i am logging onto the console and booting the server into the system services I am accessing the Unified Server Configurator

- from here I am selecting platform update and then select the CD iso image I have uploaded to the server in our solution.  At first I thought the issue may of been because I am uploading the cd image from a remote location and it was timing out but in the end I am now doing this from a server on the same site so it is going over a gb link.

- To create the iso image I downloaded the following file:

http://support.euro.dell.com/support/downloads/download.aspx?c=uk&cs=ukbsdt1&l=en&s=bsd&releaseid=R295777&SystemID=PWE_R710&servicetag=&os=WNET&osl=en&deviceid=11809&devlib=0&typecnt=0&vercnt=10&catid=-1&impid=-1&formatcnt=0&libid=1&typeid=-1&dateid=-1&formatid=-1&source=-1&fileid=443511

Renamed the file bios.exe and created an iso image.

When I point the USC tool at the mounted iso I type the name of the file, bios.exe, and click next.  After checking the file it then comes back with an error message saying catalogue file not found. 

I've tried the FTP option (after configuring network settings on the USC) using ftp.dell.com with no luck.  I get an error about network settings but I cannot see that the issue is.  When try and connected to the FTP server the network settings on the server seems to drop out and loose idrac access.

Anyone any ideas?  My preferred way is to try and update the Bios by mounting a CD