I have been noticing infrequent but intermittent failure (x3) of my WRT1900ACSv2 5Ghz networks (wlan0) internet connectivity after scheduled nocturnal reboot. This issue fixes itself after I manually reboot the router from the Luci settings (via 2.4ghz wlan1), but is affecting my long term stability. Reviewing the system log, I've noticed the following. Please let me know if anyone is experiencing these issues. Considering trying my luck with the master build, but I also wonder if someone has found a work-around.
* daemon.err modprobe: failed to find a module named act_ipt
* daemon.err collectd: rrdtool plugin: rrd_update_r failed: /tmp/rrd/OpenWrt/cpu-0/percent-softirq.rrd: opening '/tmp/rrd/OpenWrt/cpu-0/percent-softirq.rrd': No such file or directory
* daemon.err collectd: rrdtool plugin: rrd_update_r failed: /tmp/rrd/OpenWrt/cpu-1/percent-interrupt.rrd: opening '/tmp/rrd/OpenWrt/cpu-1/percent-interrupt.rrd': No such file or directory
* kern.err kernel: wlan0: failed to remove key (0, xx.xx.xx.xx.xx.xx) from hardware (-5)
* kern.err kernel: wlan0-1: failed to remove key (0, xx.xx.xx.xx.xx.xx) from hardware (-5)
Until then, I'll implement watchcat on a wlan0 network and see if this can recover the stable state.