Orbi 960 print errors to legacy network printer on 2.4 IOT SSID when PC connected to wifi 5ghz SSID.

I installed my network laser printer (Brother HL-L2350DW) using the SSID for IOT devices (2.5ghz legacy) on my Orbi RBKE963 mesh network. I have assigned it a static IP/DHCP reservation in the Orbi setup. I can see the printer is connected via the Orbi admin tool. I get print errors when attempting to print if my PC is connected to the non-IOT SSID on the same router. This should not be the case as they share the same DHCP server. If I want to print, I have to connect my PC to the slower IOT SSID. If I reinstall the printer from scratch in Windows 11 using the assigned IP address, it will work immediately but not after the printer goes into sleep mode. Even when I hit the power button to wake up the printer, I am unable to print to it without errors unless I manually connect my PC to the IOT SSID. Time to buy a new printer?