Hello,

Recently, my archer t4u v3 adapter has not been able to find my network name/ssid when used with any device (laptop and desktop). However my laptop and phone can still find it with their own wifi cards. 
I've tried taking my laptop with the t4u adapter v3 adapter attached, and sat next to the router, yet it still cannot detect it in the list of avilable ones. 

I've also tried using another model of tp link's adapters, and the same thing happens. the ssid is not showing up in the list.  

I find it weird it can still detect my neighbours wifi but not mine. Though, they both used to be able to 2 days ago .