I had this with update 1.05 , my DFGT was attached to the ps3. Everytime I got the error, seconds later the ps3 did a restart. The dfgt meanwhile did not calibrate as usual, so there was something wrong there. I detached the dfgt from the ps3 and also did this 30 seconds with the network cable after the 14th restart and then he found the update, no error anymore and installed succesfully