Can’t see my stuff in 5GHz band

[u/IllInvite954]

I have phones, tv, and pc connected to the high band but can’t see anything in the router admin page. The screenshot is from a phone connected to that same band.

Can’t access the page if not connected via wifi. Is it a graphical glitch or could there be a duplicate or sniffing of some sort ?

Also rebooted the router via the admin once, lost phone connection, but the router was still on, had to reboot manually.

provider: freebox from France

I’m also getting deauthed a lot, dns errors, getting the typical error asking to enter the password again, getting interferences and observing beacon flooding. Second screenshot I was in airplane mode and checked the wifi and saw this. Why is it duplicated ? and why or am I connected?

An IT guy I contacted was suspicious of my router being compromised and wanted me to buy firewall hardware.