Trivial File Transfer Server

in CCNA & CCENT
i have been rackling my brain trying to fix this problem %Error opening tftp://192.168.10.3/c831-k903y6-mz.123.XE.bin (Time out)
Anyone on this forum experienced this problem before, how id you fix it ?
Anyone on this forum experienced this problem before, how id you fix it ?
Comments
Is the T.F.T.P. program launched on the computer?