You may recall there was, some time ago, an issue with Google hardware that was flooding networks. It was supposedly fixed, both by Google and by affected hardware manufacturers. Since that time my ASUS RT-AC3200 has random reboots. They always look like this, the “corruption” is identical every time, the date is always reverted back to May 5th.
May 5 01:05:08 kernel: _ Reboot message ... _______________________________________________________ May 5 01:05:08 kernel: <1>Unable to handle kernel NULL pointer derefere�U�at virtual address 00000000 May 5 01:05:08 kernel: <1>pgd = 80004000 May 5 01:05:08 kernel: <1> *pgd=00000000 May 5 01:05:08 kernel: <0>Internal error: Oops: 817 [#1] PREEMPT SMP May 5 01:05:08 kernel: <0>last sysfs file: /sys/class/net/eth0/speed
I have reported this numerous times through their built in feedback mechanism, literally every time it happens while I am at a keyboard I report it. I googled for the reboot message, and find other people reporting the same issue. It seems to happen more and more frequently as I have added more devices to my network. I have a very busy network, with more than 60 devices. It seems maybe the issue is a slow memory (well it was slow with fewer devices, and with more devices it happens more frequently) and some call to allocate memory in the kernel eventual fails, is unchecked, and causes a null pointer reference/panic/reboot.
FWIW I keep my firmware as up to data as possible, checking their site at least once a month (and frequently more often) and this issue has been present over multiple recent firmware versions. My current version is reported from the UI as “Firmware Version: 18.104.22.168.382_51939”
I otherwise liked the product when I acquired it, and while it has had other issues that were fixed over time with FW upgrades, they have never managed to address this issue. Based on that fact, and the fact it has been years of putting up with this, I have to say I can no longer recommend buying an ASUS router.