Was trying to move modem to another room and couldn’t figure out why internet wasn’t working despite the coaxial lines being seemingly connected correctly and checked that the lines weren’t dead.

All coaxial cables converge in my basement. The cable with the fancy plastic tag labeled “HI-SPEED INTERNET” was actually a cable from another room. It was connected to the actual ISP cable which was labeled as the previous room where the modem was housed. Therefore I ended up connecting old room to new room instead of connecting new room to the ISP.

Took an hour to figure things out because it never crossed my mind that the cable labeled HI-SPEED INTERNET wasn’t actually the correct cable. Lesson learned.