@Gothalion Good on you for sniffing that out (pun intended). Great lesson for all; inspect your home spring and fall! Glad this didn’t turn into something bigger than it is right now.
@BlackDahlia Same happened to me for a while. Drove me crazy. I swapped cords, router, reset modem.. and finally updated bios and reinstalled drivers. The situation did resolve itself but hard for me to pin point any one or combination of changes that fixed it.