Hi Tony,
Yes, "show log" on x440 shows these errors:
10/14/2015 08:19:16.00 Download of image finished with status failure -tftp: server error: (2) cannot access file
10/14/2015 08:19:15.87 Upgrade failed, script: download failed
10/14/2015 08:19:15.62 Download image from hostname ip address 192.168.10.199 file name firmware/images/summitX-16.1.2.14.xos VR VR-Default
As the logs show, the Vr is correct. I can ping tftp server (witch is nms server itself) via VR-Default.