I got this new router and I discovered problems logging into 2,4 Mhz wlan when I use SSID/password method. I am not sure if this caused by 2,4 and 5 Mhz binding. I did try to login using guest wlan 2,4 Mhz also but result is the same. Is there something I must do in order to solve this? My previous TP-Link A8 and C7 no such problem occurred. Further research revealed that joining takes several minutes. However, sometimes faster. When I connect to the TP-Link Archer A8 router with the same device, the connection always takes a few seconds. Is this firmware problem? It cannot be a feature.