I am having buggy behavior on my network: AXE16000, AXE11000, RT-AX86U, RT-AC68U, and RP-AX56. This is happening even though they all are connected via ethernet. Sometimes different nodes will be shown as offline. Sometimes they are shown as offline but I can go to the node IP address/AiMesh_Node_FirmwareUpgrade.asp and the page loads. Sometimes some are uplinked via WiFi (varying channels).
I suggest you turn off dedicated backhaul. (If I try to prioritize ethernet backhaul, or turn on/force ethernet backhaul, sometimes I will completely lose a node and need to manually switch it off and on)...
I have SmartConnect ON. I only turn it off IF I have difficulty adding an IoT device (since a lot of times it requires your smart phone to be connected to 2.4 GHz band). After adding I turn SmartConnect back ON. (For your reference I've attached a screenshot of my WiFi general settings). I'm still scratching my head why your 2.4 GHz and 5 GHz look blank.
How far away do you guesstimate are/How many walls between the router and node from each other?
Hi - I'm having the same or a similar issue. The dwb channel of the GT-AX11000 seems to stop working from time to time. Only a restart of the router solves the issues. Afterwards all repeaters can connect again to the dwb. When the connection drop happens, I can still see the dwb network, but I can't connect to it. I guess the repeaters have the same issue.
@anilpnair did you solve the issue by now?