Device: Asus RT-N56U
I installed 21.02 snapshot, commit 60fad8f from 13 July 2021. No special configurations. Just wifi, LAN switch, WAN ethernet.
Wifi works initially. My mobile can connect to the AP no problem and get internet.
But if I turn off wifi on my mobile, then turn it back on, the AP does not come up in the list of networks.
With another mobile I verified the AP is not visible.
So it seems once one wifi client has deauthed, the whole AP goes down?
Wifi becomes visible on the mobiles if I use "wifi down; wifi up" or "ifdown lan; ifup lan" on the router.
Before updating to 21.02 snapshot, the device used development snapshot from March 2021 with no such issue.
I performed build using commit fe498dd3f10 from 4 June 2021 and observed same wifi problems.
Some time between March 2021 and June 2021 is when it got broke.
How to get more debug from hostapd? There is no debugs in "logread" or "dmesg" when the AP goes down.