I suspect my house electrical ground isn't working and had suffered equipment loss due to loss thunder strike.
The last three electric utility companies we've done business with offer whole-house lightning protection, with a guarantee. Not free, but the good stuff. I've not used it, having just the usual consumer electronics, not like a home-office server system, etc. Out here in the plains, we have some of the biggest thunder storms in the country, too. If it's a Big one, I'd more likely physically unplug my best stuff, take a bit to get ready to go to basement shelter if a tornado warning is broadcast, and call anybody that's away from home to make sure they stay alert. Next door, the neighbor's house was hit by lightning three times over ten years, finally apparently stopped by tree-pruning and complete removal of one big tree that, at about 120ft in height, had acted as a lightening rod. Just an anecdote.
If the Lightning is hitting your house then you need to call in a profesional for insurance reasons. If it is hitting elsewhere and causing damage through you electrical lines or through your grounding system then you need to look into surge suppresion for your system.
