Rgb fans disconnecting

Í’m using Signal Rgb in my gaming setup. I have 3 phanteks fans and another random fan all plugged into my motherboard. Signal rgb works good for awhile and then randomly the windows chime will sound and all the fans revert to their original colours. My razer gear and my ram sticks stay the right colour but the fans dont. You can still see all the devices and I do not have and conflicting programs. I don’t know if this has been asked before but any help is appreated.