Cannot access printer while connected over eth but able over wifi

I have a HP laserjet printer, its connected over wifi to a router. My PC is connected to the same router over eth. When i try to install printer while connected over eth, printer is visible (via ping) and HP smart recognizes it but returns printer is off error Meanwhile if I am connect thru a wifi adapter to wifi, everything works as intended. The router is a ZTE , i never had such an issue before with the printer on other routers so I am suspecting it's the cause. The router is new. I have disabled all possible firewalls + Wi-Fi isn't isolated. I don't have more ideas.

Question by REKEKEKE on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.