@Joseph-TP I've followed all the steps without solving the issue: 1. Led status on RE when issue happens: BLUE 2. Try to log in range extender web page when issue occurs and share a photo of Status...

My RE455 is able to connect to my main network, but it randomly loses connection around 4AM (it might lose it more often, but that's when I notice it). I have checked the IP address and it matches...