好吧，我刚刚在圣诞节收到了一台 HP Stream 13，而 Windows 10 运行速度非常慢，所以我决定安装 Ubuntu。但是 Wifi 无法识别任何网络，我该怎么办，我快疯了，我是个 Linux 菜鸟。
00:00.0 Host bridge: Intel Corporation Device 2280 (rev 21)
00:02.0 VGA compatible controller: Intel Corporation Device 22b1 (rev 21)
00:0b.0 Signal processing controller: Intel Corporation Device 22dc (rev 21)
00:14.0 USB controller: Intel Corporation Device 22b5 (rev 21)
00:1a.0 Encryption controller: Intel Corporation Device 2298 (rev 21)
00:1b.0 Audio device: Intel Corporation Device 2284 (rev 21)
00:1c.0 PCI bridge: Intel Corporation Device 22c8 (rev 21)
00:1c.3 PCI bridge: Intel Corporation Device 22ce (rev 21)
00:1f.0 ISA bridge: Intel Corporation Device 229c (rev 21)
00:1f.3 SMBus: Intel Corporation Device 2292 (rev 21)
01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
更新：好的，我使用本教程安装了驱动程序这里几秒钟后，我看到了我的网络，但当我尝试连接时，却收到错误消息。我不记得消息是什么了。
