Realtek Rtl8192eu Wireless Lan 802.11n Usb 2.0 | Network Adapter Driver Download 'link'

Go to Device Manager → Right-click the adapter → Properties → Power Management tab → Uncheck "Allow the computer to turn off this device to save power." Also, in the Advanced tab, set Power Saving Mode to Disabled and Preferred Band to 2.4GHz .

For users (Ubuntu/Debian), the process is more technical: Go to Device Manager → Right-click the adapter