There is an installation problem, and you need a technician. When the receiver reboots, it sends a boost of power to the LNBF until it gets a signal in return, or gets a response of no signal. If you have damaged lines, a damaged receiver, damaged LNBF, or low signal reception on your antenna, a rebooted receiver will, for a very short time, boost the signal enough to get reception. Then, the receiver will drop the power back to the correct levels, thereby eliminating the short term reception boost. A technician can repair your installation to improve the reception, as long as there is Line Of Sight to the correct satellites.