Question Possible a lightning strike killed only ethernet ports on router?

[Saphyen]

Hello, just the other day I had a horrible lightning storm with really bad take out electric grid type of lightning. Ever since then my router has been acting bad, the wireless works fine, but the Ethernet portion just kinda died. First of all I can barely manage to connect it after unplugging and replugging into the router to get speeds up to 9mbps if even that. It usually stays around 3mbps when it should be well over 300mbps. I have tried different Ethernet cables, updated my drivers, and updated the router firmware (struggled with that abnormally). I was just curious if it's possible to pretty much kill only the ethernet ports, but not exactly all the way or am I focusing on the wrong thing?

 

[USAFRet]

I was just curious if it's possible to pretty much kill only the ethernet ports, but not exactly all the way or am I focusing on the wrong thing?

That is absolutely possible.

I had similar a few years ago.

Very specific ports and devices were killed or otherwise affected.