All three lights have been lit since I started using this device… Even after firmware upgrades all works… I use both 5ghz and 2.4ghz.
Today I noticed the middle 2.4ghz led is out. I rebooted and power cycled… The LED is still out. However the 2.4ghz is working fine…
Here is a copy&paste of a post in another thread by @alzhao:
root@GL-AR750S:~# cat /sys/class/leds/gl-ar750s\:white\:usbpower/brightness
root@GL-AR750S:~# cat /sys/kernel/debug/gpio
gpiochip0: GPIOs 0-31, parent: platform/ath79-gpio, ath79-gpio:
gpio-1 ( |gl-ar750s:white:powe) out lo
gpio-2 ( |reset ) in hi
gpio-5 ( |sda ) in hi
gpio-7 ( |gl-ar750s:white:usbp) out hi
gpio-8 ( |right ) in hi
gpio-19 ( |gl-ar750s:white:wlan) out lo
gpio-20 ( |gl-ar750s:white:wlan) out hi
gpio-21 ( |scl ) in hi
This GPIO 7 (usbpower LED) should be the USB Power control. It should output 0 when enabled
Ok, I noticed something last night… Earlier in the day I added a an OPENVPN service to the router. I subscribed to NordVPN… Worked great…
I was looking at the router and noticed the Middle LED flashed a few times… I have no idea why it did that and I could not recreate it… I even tried logging off the 5ghz and logged into the 2.4ghz hoping that would trigger something… But no. I am hoping for a updated Firmware flash to see if that fixes it… I Realize I could factory reset it but would rather wait for a real reason… LOL
Also why do the GPIO settings refer to White? These LEDS are green… Do they change color?
I have the same problem. I am using Slate for 2 years now, and few month 2.4GHz went off.
And just today the power LED also not working. I am arfaid that the problem in the solder joints under the chip or the PCB itself. There are thermal pads which may leak some oil and due to corrosion contact may dissapear. The same happens with video cards nowadays. But luckily main functions are OK.