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This question is an exact duplicate of:

I have sometimes internet disconnection from my wifi connection to my home wifi modem.

I have one Linux LMDE OS into my Lenovo IdeaPad 310 laptop, so in regular times I have this:

so@notebook:~$  uname -a
Linux notebook 4.9.0-9-amd64 #1 SMP Debian 4.9.168-1 (2019-04-12) x86_64 GNU/Linux



  so@notebook:~$ ifconfig           

wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500 
       inet 192.168.1.105  netmask 255.255.255.0  broadcast 192.168.1.255 
       inet6 fe80::59dc:548c:4eb2:a3e5  prefixlen 64  scopeid 0x20<link> 
       ether c8:3d:d4:3c:23:63  txqueuelen 1000  (Ethernet) 
       RX packets 50050  bytes 46065327 (43.9 MiB) 
       RX errors 0  dropped 0  overruns 0  frame 0 
       TX packets 40256  bytes 6564953 (6.2 MiB) 
       TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

but when my wifi internet disconnected I have this:

so@notebook:~$ ifconfig           
wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500 
       inet6 fe80::59dc:548c:4eb2:a3e5  prefixlen 64  scopeid 0x20<link> 
       ether c8:3d:d4:3c:23:63  txqueuelen 1000  (Ethernet) 
       RX packets 50203  bytes 46102351 (43.9 MiB) 
       RX errors 0  dropped 0  overruns 0  frame 0 
       TX packets 40387  bytes 6581340 (6.2 MiB) 
       TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 

and my wifi setting could be seen here: my wifi setting

Update: Based on comments I have:

so@notebook:~$ lspci -knn | grep Net -A3
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter [10ec:8821]
        Subsystem: Lenovo RTL8821AE 802.11ac PCIe Wireless Network Adapter [17aa:a814]
        Kernel driver in use: rtl8821ae
        Kernel modules: rtl8821ae
03:00.0 3D controller [0302]: NVIDIA Corporation GM108M [GeForce 920MX] [10de:134f] (rev a2)

So why this happened?

marked as duplicate by GAD3R, Rui F Ribeiro, roaima, Community Jun 15 at 16:06

This question was marked as an exact duplicate of an existing question.

  • Welcome, could you add the output of lspci -knn | grep Net -A3 . – GAD3R Jun 15 at 10:12
  • I have added to my question ... – Soheil Paper Jun 15 at 14:36
  • Is this the same question as your earlier one? – roaima Jun 15 at 14:49

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