532 rb constantly reboots as soon as I scan 5.8ghz frecuency

Hi there need help with rb 532, router board works fine with wireless interface in 2.4 ghz as soon as I swithch to 5.8 same or another interface rb reboots constantly and will not stop until I remove radio and rb starts up fine have tried several tips and tricks cpu is under 10% when rb reboots memory is 18.4 mgs no over heating on any chip aparently have 20 rb al with this problem have tried updating ros same thing happens if 6.3 or 4.7 0r 3.30 is running

PLEASE help Im stuck at the :open_mouth: moment with 20 paper weights :open_mouth:

Tried with different wlan card?

Yes several same result

could you connect a serial console to the board and look if it does show a kernel panic or just reboots like with power failure?