RB600 with 2XR5 + 2SR5 lock sometimes

I have a RB600 (ROS3.15 and 2.18 bios) on a tower with 2XR5 and 2SR5 on board (nstream dual with xr5 a normal wds with sr5), sometime 1 or 2 times a day crashes not reboot ,I have to unplug and plug power.

Thanks

Now is locked I don’t see wireless signal and via ethernet the link is ok but nothing more.