I had an interesting electrical issue. Plumber replaced our city water feed with PVC and never told me that he disconnected the house ground cable. Yup, went 8 years without a house ground. The Duke Energy meter assembly/box was grounded with a #4AWG but never connected to my service panel. So the only house ground was through a lose Duke conduit connection that was not tightened. Not much help there.
After 3 major lightning hits in 5 years near the house and electronics damage each time I decided to investigate the electrical. Found the no ground issue and installed a new ground rod 8’ away from the existing Duke ground rod (local code requirement), and connected it to my Electric Service panel’s ground bus. I tightened the Duke conduit connector tight. I added a new ground rod and #4AWG cable to the Satellite and WOW Internet feed connector box along with GAS surge protectors on all the COAX connectors in the box. I then installed an APC Ethernet RJ45 surge protector between the Arris cable box and my UDM-Pro. I also added another GAS surge protector on the Arris COAX connection. As for power to my network setup and cameras I have an APC UPS. With all this ground/surge protection, it made no noticeable difference in the data speed.
Will this guarantee that I will not suffer electronics damage due to another lightning strike, absolutely not, but it will give me a better insulator between the connections that come into the house.
All the above items were purchased on Amazon. Time will tell!!!