过去几天，我一直在为系统的 WI-FI 支持而苦恼！我已将 ubuntu 版本从 18.04 lts 升级到 18.10。升级后，我的 WI-FI 可以正常使用 5-6 天，但之后即使信号似乎出现，它也会每 4-5 分钟自动断开连接一次，然后我不得不在 4-5 分钟后定期重新启动网络管理器！您的帮助真的对我有很大帮助。我在这里发布了更多详细信息，请看：
命令输出sudo lshw -C network：
*-network
description: Wireless interface
product: QCA9377 802.11ac Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlp1s0
version: 31
serial: f8:28:19:db:29:e7
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath10k_pci driverversion=4.18.0-17-generic firmware=WLAN.TF.1.0-00002-QCATFSWPZ-5 ip=192.168.31.222 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:36 memory:e8800000-e89fffff
笔记本电脑详细信息：
Name : Lenovo idapad 320.
WIFI driver : ath10k_pci
虽然我对设置为0的物理ID有一点怀疑。所以看看的输出sudo lshw -C network！
请尽快帮助我，因为我的系统上有很多重要的待处理工作。所以，您的帮助对我来说太重要了！
命令输出nmcli device：
DEVICE TYPE STATE CONNECTION
wlp1s0 wifi connected Unable to Connect
enp2s0 ethernet unavailable --
lo loopback unmanaged --
命令输出ip addr show：
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp2s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether 54:e1:ad:64:79:4b brd ff:ff:ff:ff:ff:ff
3: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether f8:28:19:db:29:e7 brd ff:ff:ff:ff:ff:ff
inet 192.168.31.222/24 brd 192.168.31.255 scope global dynamic noprefixroute wlp1s0
valid_lft 41615sec preferred_lft 41615sec
inet6 fe80::b0c8:7396:bee9:cbbd/64 scope link noprefixroute
valid_lft forever preferred_lft forever
命令输出ls -l /etc/resolv.conf：
lrwxrwxrwx 1 root root 39 May 12 2018 /etc/resolv.conf -> ../run/systemd/resolve/stub-resolv.conf
命令输出systemd-resolve --status wlp1s0：
Link 3 (wlp1s0)
Current Scopes: DNS
LLMNR setting: yes
MulticastDNS setting: no
DNSOverTLS setting: no
DNSSEC setting: no
DNSSEC supported: no
Current DNS Server: 192.168.31.1
DNS Servers: 192.168.31.1
DNS Domain: ~.
命令输出cat /etc/resolv.conf：
This file is managed by man:systemd-resolved(8). Do not edit.
#
# This is a dynamic resolv.conf file for connecting local clients directly to
# all known uplink DNS servers. This file lists all configured search domains.
#
# Third party programs must not access this file directly, but only through the
# symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a different way,
# replace this symlink by a static file or a different symlink.
#
# See man:systemd-resolved.service(8) for details about the supported modes of
# operation for /etc/resolv.conf.
nameserver 192.168.31.1
命令输出sudo lshw -c network | grep 'configuration'：
configuration: broadcast=yes driver=ath10k_pci driverversion=4.18.0-17-generic firmware=WLAN.TF.1.0-00002-QCATFSWPZ-5 ip=192.168.31.222 latency=0 link=yes multicast=yes wireless=IEEE 802.11
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
mokutil --sb-state命令输出
SecureBoot disabled
rfkill命令输出
ID TYPE DEVICE SOFT HARD 0 bluetooth hci0 blocked unblocked 1 wlan ideapad_wlan unblocked unblocked 2 bluetooth ideapad_bluetooth blocked unblocked 3 wlan phy0 unblocked unblocked