When I looked in device manager there is no network adapters. I'm not really that tech savy I just know this stuff from google. Oh and I did system restore. All this because of lightning.
First, what a power supply does on power off is decided by a power controller - a separate item. The power controller could have hardware damage. Or a BIOS setting that says how it powers down might have changed. BIOS might be set to automatically restart. Or hardware damage to the controller might not power off at all.
Second, damage is classic of what happens when (for example) lightning strikes AC electric wires far down the street. That surge is incoming to every appliance. Most often damaged are appliances that also have an outgoing path to earth. Telephone and cable wires should already have best protection where their wires meet yours. So anything connected to those cables can be a best outgoing (and destructive) path.
To have damage means it must have both an incoming and another outgoing path. All other appliances (with or without adjacent protectors) also suffered the same incoming surge. But since routers, et al had a better outgoing path, then those other appliances were not damaged.
Damage is often on the outgoing path (internet side of router or computer's network interface card). Damage is sometimes made easier if a protector is adjacent to that electronics.
Third, a network interface card or motherboard chip (the outgoing path) is probably damaged. To say more starts by viewing lights that report each end of the Ethernet connection. Both on an NIC and router. A PCI network card probably is needed for the computer since Device Manager does not even see the original Network Interface's computer.
Four, learn of another and completely different device (also called a surge protector) that would have averted all that (and future) damage. And that costs less money. This other and so effective device works because it features a low impedance (ie 'less than 10 foot') connection to single point earth ground. Protectors without that short earth connection do not even claim to protect from the type of surge you have apparently suffered. Something you have learned the hard way.
