# download image xxx.xxx.xxx.xxx summitX-18.104.22.168-patch1-2.xos vr vr-default secondary
Do you want to install image after downloading? (y - yes, n - no,
Downloading to Switch.......Error: Failed to download image - tftp: server error: (4) Wrong block number.
This works fine on my other Summit X440 switches and I don't see any glaring configuration differences. Any ideas as to what might be causing this error?