下载rtl8812au-master.zip 地址https://github.com/gnab/rtl8812au

1. 解压rtl8812au-master
2. cd rtl8812au-master
3. make
4. sudo make install
5. sudo modprobe 8812au
6. 拔掉tenda U12 的无线网卡，然后重新连接
7. 搜索wifi，测试网络成功^^


参考:
- https://www.jianshu.com/p/497c9eb61424
- https://www.cnblogs.com/idorax/p/12369624.html