QUOTE(soonwai @ Oct 27 2019, 07:03 AM)
The disconnect/reconnect happens rarely. Not sure why. Sometime they're so frequent that the internet will be unusable. Here's an example from a few days ago.

Each of the above is an IP address change cause by pppoe reconnecting. Why it is doing it, I don't know.
Mine has been going since the 25th. Still going on today and consistently every 3 hours. Here's bits of the log each time the IP address changes.
2019-10-27 04:06:42 nat[22292]: <6> 211501 Initialization succeeded
2019-10-27 04:06:41 nat[22292]: <6> 211501 Initialization succeeded
2019-10-27 07:06:50 nat[2477]: <6> 211501 Initialization succeeded
2019-10-27 07:06:49 nat[2477]: <6> 211501 Initialization succeeded
2019-10-27 10:06:59 nat[12578]: <6> 211501 Initialization succeeded
2019-10-27 10:06:58 nat[12578]: <6> 211501 Initialization succeeded
The addresses have also not switched from a certain range.
This might be a separate problem entirely though, so I'll open a new thread on it.