Hi all, I live in a duplex home. The ethernet cable from the service provider is connected to the DIR 816 dual band router which supports 2.4 Ghz and 5 Ghz and it is placed in the first floor. Both bands are active. Sadly, my room in ground floor don't receive good wifi signal. So I installed Zyxel wifi router in my room. A ethernet cable of length approximately 30 meter runs from LAN1 ethernet port of DIR 816 to Zyxel WAN port and from Zyxel LAN1 port ethernet cable runs to my computer. At last, my computer gets good internet speed. My internet speed is 75 Mbps and I can successfully achieve it 5Ghz band in other device. But in speed test result in PC, shows 65 mbps. Why this anomaly? How can I fix it?