我需要帮助。我刚刚安装了 Ubuntu 16.04 作为 Windows 10 的双启动。它连接到网络，但互联网速度极慢或根本不起作用。
lspci -knn | grep Net -A3
04:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter [10ec:8812] (rev 01)
Subsystem: D-Link System Inc RTL8812AE 802.11ac PCIe Wireless Network Adapter [1186:3305]
Kernel driver in use: rtl8821ae
Kernel modules: rtl8821ae
提前致谢。
sudo lshw -C network
[sudo] password for mike:
*-network
description: Ethernet interface
product: Killer E220x Gigabit Ethernet Controller
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:03:00.0
logical name: enp3s0
version: 13
serial: d8:cb:8a:5e:92:0f
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=alx latency=0 link=no multicast=yes port=twisted pair
resources: irq:32 memory:f7200000-f723ffff ioport:d000(size=128)
*-network
description: Wireless interface
product: RTL8812AE 802.11ac PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:04:00.0
logical name: wlp4s0
version: 01
serial: e4:6f:13:28:91:61
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8821ae driverversion=4.4.0-31-generic firmware=N/A ip=192.168.1.107 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:31 ioport:c000(size=256) memory:f7100000-f7103fff
mike@mike-MS-7821:~$ lspci -nnk | grep -A2 0280
04:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter [10ec:8812] (rev 01)
Subsystem: D-Link System Inc RTL8812AE 802.11ac PCIe Wireless Network Adapter [1186:3305]
Kernel driver in use: rtl8821ae
mike@mike-MS-7821:~$ modinfo rtl8821ae
filename: /lib/modules/4.4.0-31-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/rtl8821ae.ko
firmware: rtlwifi/rtl8821aefw.bin
description: Realtek 8821ae 802.11ac PCI wireless
license: GPL
author: Realtek WlanFAE <[email protected]>
srcversion: B9E24DCC76240A48AEEF94E
alias: pci:v000010ECd00008821sv*sd*bc*sc*i*
alias: pci:v000010ECd00008812sv*sd*bc*sc*i*
depends: rtlwifi,rtl_pci,btcoexist,mac80211
intree: Y
vermagic: 4.4.0-31-generic SMP mod_unload modversions
parm: swenc:Set to 1 for software crypto (default 0)
(bool)
parm: ips:Set to 0 to not use link power save (default 1)
(bool)
parm: swlps:Set to 1 to use SW control power save (default 0)
(bool)
parm: fwlps:Set to 1 to use FW control power save (default 1)
(bool)
parm: msi:Set to 1 to use MSI interrupts mode (default 1)
(bool)
parm: debug:Set debug level (0-5) (default 0) (int)
parm: disable_watchdog:Set to 1 to disable the watchdog (default 0)
(bool)
parm: int_clear:Set to 0 to disable interrupt clear before set (default 1)
(bool)