No 2.4GHZ in velica

I have a velica , I opened the 2.4 and 5g.
the 5g is work good . but my 2.4 device can‘t find wifi route.
all CLIENTS is connected to 5g.

can you please share the wifi setting on velica?

Is your 2.4 band set to auto? Try changing to 1,6 or 11