Hi! I'm constantly having connection issues with my Galaxy A40 when using 5GHz AC on RT-AC58U (2.4G works perfectly fine). When A40 is located in the area with a weak WiFi signal, an exclamation mark often appears next to the WiFi icon (which is perfectly fine), but when the phone is returned to the area with a strong signal, this exclamation mark often does not go away and A40 does not reconnect to the Internet (it shows the "Connected without Internet" message). However, sometimes this...
RT-AC58U (RT-ACRH13) - 5GHz disconnections
RT-AC58U (RT-ACRH13) - 5GHz disconnections