Review on Tenda U9 11AC USB Wifi Adapter - Dual Band 2.4/5G AC650 Wireless Network Card, Windows Compatible and Compact in Black by Seo-jun Jun

Immediately after acquiring the joy, there was no limit - the wife's computer, located in the room next to the router (1 reinforced concrete wall), gave out speeds close to wired, in both ranges (about 80-85 for reception / return at a rate of 100), but the joy lasted not for long. connections occurred from 4-5 times, then it stopped cutting at all. I took the wood to the whistle and rolled it up again (from the official site, very ancient, by the way) - the 5th range began to connect from the 1st time, but the speed was just laughter - 2-3 mb. In this case, the laptop and phones are connected to both bands at high speeds, as before. I've tried changing channels on the router with no effect. Recently, glitches with a connection to the 2.4 range have occasionally begun. I'll wait until the whistle turns completely and take it to the SC.