Ubuntu 19.04中没有wifi

I did some work on root folder I think granting access rights on etc/lib folder, except this I did nothing, since then Wifi disappear from my ubuntu. I went across this article No wifi option on Ubuntu (18.04 and 16.04) but didn't work for me.

dmesg | grep ath

  [    2.290685] systemd[1]: /lib/systemd/system/spice-vdagentd.service:8: PIDFile= 
  references path below legacy directory /var/run/, updating /var/run/spice- 
  vdagentd/spice-vdagentd.pid → /run/spice-vdagentd/spice-vdagentd.pid; please update the 
  unit file accordingly.
  [    6.101805] audit: type=1107 audit(1589708256.391:65): pid=1075 uid=103 auid=4294967295 
  ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" 
  path="/org/freedesktop/systemd1" interface="org.freedesktop.systemd1.Manager" 
  member="GetDynamicUsers" mask="send" name="org.freedesktop.systemd1" pid=1211 
  label="/usr/sbin/mysqld" peer_pid=1 peer_label="unconfined"


 0: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no

须藤lshw -c网络

   *-network UNCLAIMED       
   description: Network controller
   product: Intel Corporation
   vendor: Intel Corporation
   physical id: 14.3
   bus info: pci@0000:00:14.3
   version: 00
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress msix bus_master cap_list
   configuration: latency=0
   resources: memory:b4318000-b431bfff
   description: Ethernet interface
   product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
   vendor: Realtek Semiconductor Co., Ltd.
   physical id: 0
   bus info: pci@0000:03:00.0
   logical name: eno1
   version: 15
   serial: 04:0e:3c:1c:3a:0e
   size: 1Gbit/s
   capacity: 1Gbit/s
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 
   10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
   configuration: autonegotiation=on broadcast=yes driver=r8169 duplex=full 
   firmware=rtl8168h-2_0.0.2 02/26/15 ip= latency=0 link=yes multicast=yes 
   port=MII speed=1Gbit/s
   resources: irq:16 ioport:3000(size=256) memory:b4204000-b4204fff memory:b4200000-b4203fff