Help with Streaming

Good day

I have DivX player and from time to time me and my wife would Like to watch a Movie on the Big screen , witch we do with DivX player streaming to our TV But it Looks Like no more the 30 or 40 minutes and it stops

something happens In the TV Box Not on the PC to the Point we must turn of the TV Box :confused:

Does any one Know what is going on ?? or have had the same thing in the past

many thanks