My Deco M4 satellite unit sort of disconnects. It shows white led but my PC (connected to lan port) disconnects from network. How do I fix the issue? Where do I see the logs?

@TP-Link_Deco Right after Step 6: Log into your TP-Link account. I get to the authorization step which seems to do something in the background but never get to Step 7: Now you can control your router...

When trying to connect to TP-Link Router through the google home app, the authorization succeeds but it then redirects back to the app without adding the router device.