Wifi repeater

Yes you would think the electricity of a lightening strike would come in through your power panel. But I have seen 9 times out of 10 with DSL internet service that comes in over the copper telephone line. The lightening strikes the ground and jumps right on to your incoming copper telephone line, right though your internet router, directly on though the hard wired ethernet cables to your hard wired computer. There the electricity is looking for ground, so it shorts though the power source, across the mother board, over the hard drive, toasting them all, and finally back to the ground circuit of your power cord and out the power panel to ground , , .

Another advantage to have household computers on the wifi for the internet, electricity does not jump across the wifi.

Like RSie says, I too have seen telephone parts blown all over the interior of homes from the lightening strikes, charred black.