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I've been struggling with the WI-FI support of my system for last few days! I've upgraded my ubuntu ver. from 18.04 lts to 18.10. After doing this, my WI-FI was okay for 5-6 days but after that it started disconnecting automatically after every 4-5 mins even when the signal seems to be appear, then I have to restart the network manager again and again periodically after 4-5 mins! Your help will really help me a lot. Here I've posted few more details, Have a look :

OUTPUT OF sudo lshw -C network command:

*-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

Details Of laptop:

Name : Lenovo idapad 320.

WIFI driver : ath10k_pci

Although I've a little doubt about physical ID which is set to 0. So have a look at the output of sudo lshw -C network!

Please help me as soon as possible as I've so many imp. pending works on my system. So, your help would be great to me !

OUTPUT OF nmcli device command:

DEVICE        TYPE            STATE            CONNECTION     

wlp1s0        wifi            connected        Unable to Connect 

enp2s0        ethernet        unavailable      --           

lo            loopback        unmanaged        --  

OUTPUT OF ip addr show command:

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

OUTPUT OF ls -l /etc/resolv.conf command:

lrwxrwxrwx 1 root root 39 May 12  2018 /etc/resolv.conf -> ../run/systemd/resolve/stub-resolv.conf

OUTPUT OF systemd-resolve --status wlp1s0 command:

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: ~.

OUTPUT OF cat /etc/resolv.conf command:

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

OUTPUT OF sudo lshw -c network | grep 'configuration' command:

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

OUTPUT OF mokutil --sb-state command

SecureBoot disabled

OUTPUT OF rfkill command

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