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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 + wifi isnt isolated. I dont have more ideas.

pls send help