We have an RUT950, wireless AP is configured with 2 SSIDs, one PSK and one WPA2-EAP. The EAP SSID stops broadcasting after a few hours, I see the following in the logs but no additional information before or after:
Wed Jun 26 09:38:48 2019 daemon.notice netifd: Network device 'wlan0-1' link is down
Wed Jun 26 09:38:48 2019 kern.info kernel: [ 9363.670000] br-lan: port 2(wlan0-1) entered disabled state
Wed Jun 26 09:38:48 2019 kern.info kernel: [ 9363.690000] device wlan0-1 left promiscuous mode
Wed Jun 26 09:38:48 2019 kern.info kernel: [ 9363.690000] br-lan: port 2(wlan0-1) entered disabled state
In the router web interface the SSID status is still enabled, but the icon is greyed out: 
If I disable the re-enable the SSID (or power cycle the router) it appears again.
I have updated the router to firmware 6.03.2 but the issue still occurs.
Does anyone have suggestions for troubleshooting or resolving this issue?