So... Lenovo T520, Windows 10, Ethernet adapter model: Intel 82579LM Gigabit network connection) A few days ago we had a lightening strike near our home and both the router and modem ports got fried as a result. Replaced both and all was well. I usually use my laptop connected directly to the modem via ethernet cable, and it was working fine after the new modem/router was setup. Today, all of a sudden i can't connect to the internet via Ethernet port (WIFI works fine) When I check the adapter settings the adapter is working properly according to Win10 (But red X and "Ethernet cable is unplugged" message, although it's plugged in) Restarted laptop, updated win 10, enable and disabled the network adapter - no change. (I did NOT uninstall and reinstall the whole network adapter - a bit scared to do that) The LED lights at the Ethernet port of laptop are NOT lit up; SAME with modem port. Tested cable: fine, (works on other laptop) Tested modem port: fine with other laptop tried different port on modem: no change tried different cable: no change checked network adapter: no yellow exclamation point in device manager; same in BIOS; it is ENABLED Updated driver of the network adapter: no change So modem and router are fine, as other laptop works when connected via ethernet cable I cannot imagine it had anything to do with the lightening even though the laptop was connected via ethernet cable at the time (not in use), because it has been 5 days since that happened.... NOTE: wife did mention there was a brief drop of internet connection sometime before I discovered this. She said it lasted only a few minutes. What can it be? i am suspicious if the short internet outage changed something but then how come wife's laptop still works? and wireless also works even on mine... is the port itself somehow physically damaged? IDK how that could be though; I hardly unplug the cable on this laptop. There's a little bit of play with the connection but i think it's normal, and nothing happened to pull on the cable or anything like that.. I am not sure if one can easily replace the ethernet port on a T520 (I am thinking of getting a USB Gigabit Ethernet adapter dongle in the meantime, hope that would work and give me the full 300 mpbs from modem I used to get with ethernet port.) Any ideas? Thanks I.A.