WiFi disabled on my RT-AC66U

[Swiso]

Hello,
I have a problem with my RT-AC66U router.
It is from a couple of weeks (more or less...) that the WiFi is always turned off.
I go to the settings, turn it on, and the after a day or two it go off again. (both 2.4 and 5)
Any idea why happen this ?
I have the syslog.txt saved if needed.
Firmware version is 380.58

Thanks

 

[L&LD]

You may want to try the 380.59 Beta 1 (or wait for Beta 2) at this point.

 

[RMerlin]

Try setting it to a fixed channel.