The symptom is like this: 
Any suggestions? Will any logs help?
				
			- 5G or 2.4G devices will say this wifi connection can't connect to internet, and ask me if I want to switch to mobile data.
 - On my PC, which is wired connection, webpages will simply not loading during the internet connection drop. NIC seems still showing connected, but I can't connect to the router page too.
 
Any suggestions? Will any logs help?
	