Seems the inner software is down periodically. How often does the issue happen? Is there any advanced configuration on the switch?

@pnwfc If you just have a single WAN, you don't need to configure anything. All traffic will go to the default gateway (that is the LAN IP of the router), and to the WAN port. This is what a router...

That sounds great! TP-Link should adopt this suggestion and develop it sooner than his competitor, lol.

You are correct

Do you have multi-WAN connections? If you want to direct a certain LAN network to a certain WAN connection, you should configure policy routing, not static routing.

The default IP of the switch is 192.168.0.1. Check if there is any IP conflict in your network. And when you failed to access the switch, can you still access internet? Is there any change in your...