笔记本电脑：联想 G50-45
处理器：AMD E1 处理器
无线上网：高通 Atheros 内置 WiFi。
操作系统：Ubuntu 16.10
问题：保持与无线路由器的连接，但是互联网停止工作。
解决方法
断开我的 Wi-Fi
重新连接
再工作 5 分钟，然后我必须重复上述步骤。
Ping 请求返回
From xxxxxx-Lenovo-G50-45 (192.168.0.6) icmp_seq=999 Destination Host Unreachable
输出sudo lshw -class network
*-network
description: Wireless interface
product: QCA6164 802.11ac Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlp1s0
version: 20
serial: c8:ff:28:ca:c5:79
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath10k_pci driverversion=4.8.0-32-generic firmware=SW_RM.1.1.1-00157-QCARMSWPZ-1 ip=192.168.0.6 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:39 memory:f0800000-f09fffff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: enp2s0
version: 10
serial: 50:7b:9d:c4:30:f5
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168g-3_0.0.1 04/23/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:32 ioport:2000(size=256) memory:f0c04000-f0c04fff memory:f0c00000-f0c03fff
ifconfig连接时的详细信息
enp2s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether xxxxx(masked) txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Local Loopback)
RX packets 50367 bytes 3271419 (3.2 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 50367 bytes 3271419 (3.2 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.6 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 xxxxx(masked) prefixlen 64 scopeid 0x20<link>
ether xxxxx(masked) txqueuelen 1000 (Ethernet)
RX packets 58474 bytes 59035701 (59.0 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 37687 bytes 5854176 (5.8 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ifconfig没有互联网时的详细信息无法正常工作
enp2s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether xxxxx(masked) txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Local Loopback)
RX packets 248144 bytes 15440577 (15.4 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 248144 bytes 15440577 (15.4 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.6 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 xxxxx(masked) prefixlen 64 scopeid 0x20<link>
ether xxxxx(masked) txqueuelen 1000 (Ethernet)
RX packets 98559 bytes 101523293 (101.5 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 63919 bytes 9217006 (9.2 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
编辑：
结果iwconfig
wlp1s0 IEEE 802.11 ESSID:"AbyNabs"
Mode:Managed Frequency:2.412 GHz Access Point: 90:8D:78:F7:05:5D
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=70/70 Signal level=-34 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:2197 Invalid misc:3733 Missed beacon:0
lo no wireless extensions.
enp2s0 no wireless extensions.
结果cat /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
[connection]
wifi.powersave = 3
答案1
您的问题可能是无线电源管理导致的。我们可以通过以下方式禁用
sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf重启