@Lee07,

If I am not mistaken, the only thing that those entries indicate is that the LED indicator is turning on and off. If the LED of the WAN port is being turned off, it means that the router is disconnecting from the modem in some way, shape or form. It could be a setting on your router, but I am more inclined to believe that it may be caused by the modem.

What model and make of modem are you using?

I would also recommend looking through the different filters in your router logs to see if there are any other reports that could narrow down the search.

When the behavior occurs next, take note of the LED indicators on both the router and the modem. 

Most importantly, check the indicators of your modem to make sure that the modem is not the cause. Next time you have an outage, I would also recommend checking a site like down detector to see if other spectrum users are having issues at the same time.