I just was upgraded from a G1100 router to a G3100 router. So far, I've had success with 10 WiFi devices.
However, I have a Dell Inspiron 3521 with a 2.4GHz Wi-fi card which gives me the error: "Can't connect to this network". I tried disabling the 5GHz options on the G3100, but that did not help. I ran 'netsh wlan delete profile name="[profile_name]"' to clear the cached Wi-fi password, but it still gives the same error after I enter the password.
Has anyone else encountered this problem?