Review on Cudy AC2100 Smart WiFi Mesh Router with WiFi Range Extender, Access Point, Dual Band Gigabit Wireless Internet Router for Home, 5 dBi Antenna, VPN, IPv6, Quality of Service (QoS), OpenWRT, WR2100 by Russ Montgomery

Bought to replace my old 2.4ghz router but the 5ghz wifi signal keeps dropping out so my phone started to gobble up my online minutes while I was online. in the same room as this router (the 2.4Ghz signal seems good, I haven't seen it drop out every time I switch to it). I've followed various online tutorials to fix 5GHz WiFi signal dropouts including updating the firmware and disconnecting the Cudy router and my devices for a few minutes to allow it to reconnect, but nothing has worked. , nothing has improved. After a few days still the same problem so I will have to send it back.