how to keep motion sensors ON, scan ON, and CONNECTED to internet?

[mike]

Anyone else have this problem?  seems everytime I leave computer for any length of time, when i return, vanguard is running, but motion sensors (bottom right corner sw) is back OFF, connection to internet went away, and SCAN is back off and the 9 cameras show test image....  I can turn all back on and it is fine - while I am at computer. 

NO, computer does not go to sleep;  screen saver does pop on tho.

Any ideas how to keep this stuff on?

Vanguard is useless if it keeps turning off motion sensing and or scanning!

[HA Dave]

.... computer does not go to sleep;  screen saver does pop on tho.

I run a HA PC 24/7.... I don't use vanguard... I use the iwitness. However I run the PC as a [power settings] never off and with no screen saver. I turn the monitor off (and on) manually as I rarely look at the PC.