I had very similar problem where many (not all) of my IoT bulbs constantly deauthenticate and authenticate frequently making them totally useless... I did the following on my asus AX-11000 router to keep them stay connected.
disable "Enable WMM APSD" [as suggested in this thread].
lower the...
Update: as a work around, I got the /sda1 (my usb) mounted directly under the /opt and its all good.
/dev/sda1 on /opt type ext3 (rw,relatime,data=ordered)
@bbunge
How did you get around the missing read-only link /opt/var?
The stock firmware is missing the readonly link (/opt/var) so Entware install fails with the following messages. Have you found any work around this? I am on ASUS GT-AX11000 with stock firmware ( Version:3.0.0.4.384_8011)...