我在 Ubuntu 16.04 LTS 上使用新购买的联想 T470 和 Realtrek 无线网卡。Jeremy31 的建议，我安装了驱动程序 -
sudo apt-get install git build-essential
git clone https://github.com/rtlwifi-linux/rtlwifi-next.git
cd rtlwifi-next
make
sudo make install
但是，无线网络仅在重启后的最初几分钟内可用。后来不知为何就被禁用了。
sudo lshw -C network
*-generic DISABLED
description: Wireless interface
product: Realtek Semiconductor Co., Ltd.
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:04:00.0
logical name: wlp4s0
version: 00
serial: 28:56:5a:2b:97:c9
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8822be driverversion=4.10.0-041000-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: iomemory:ffffffff0-fffffffef irq:129 ioport:d000(size=256) memory:ec100000-ec10ffff
*-network
description: Ethernet interface
product: Ethernet Connection (4) I219-V
vendor: Intel Corporation
physical id: 1f.6
bus info: pci@0000:00:1f.6
logical name: enp0s31f6
version: 21
serial: 54:e1:ad:1f:de:57
size: 100Mbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k duplex=full firmware=0.1-4 ip=137.189.40.206 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:128 memory:ec200000-ec21ffff
*-network
description: Ethernet interface
physical id: 3
logical name: ham0
serial: 7a:79:19:2b:37:e0
size: 10Mbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=tun driverversion=1.6 duplex=full ip=25.43.55.224 link=yes multicast=yes port=twisted pair speed=10Mbit/s
我检查过了，没有被阻塞。
rfkill list
1: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: yes
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
有什么建议我应该考虑吗？顺便说一下，我安装了 PrivateInternetAccess，但 killswitch 被禁用了。