The Internet stops working randomly

leo_kor · 04-08-2020, 09:57 AM

Hey everyone.

I have the following issue. After I leave my laptop for a few minutes, the Internet just stops working. The wifi signal still shows connection but when I try to surf, it shows that no Internet is present. Also, the same problem occurs when I am using my laptop for things besides the Internet (e.g., watching a movie, or for coding in IntelliJ). Thus, I suppose there hibernation, or sleep on my machine does not work properly.

What are some probable solutions?

My system:

Code:

System:    Host: leo-Inspiron-5493 Kernel: 5.3.0-46-generic x86_64 bits: 64 compiler: gcc v: 7.5.0 
           Desktop: Cinnamon 4.4.8 Distro: Linux Mint 19.3 Tricia base: Ubuntu 18.04 bionic 
Machine:   Type: Laptop System: Dell product: Inspiron 5493 v: N/A serial: <filter> 
           Mobo: Dell model: 0M4FW1 v: A00 serial: <filter> UEFI: Dell v: 1.1.0 date: 08/16/2019 
Battery:   ID-1: BAT0 charge: 39.9 Wh condition: 39.9/42.0 Wh (95%) model: BYD DELL 1VX1H9A 
           status: Full 
CPU:       Topology: Quad Core model: Intel Core i5-1035G1 bits: 64 type: MT MCP arch: Ice Lake 
           rev: 5 L2 cache: 6144 KiB 
           flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 19046 
           Speed: 959 MHz min/max: 400/3600 MHz Core speeds (MHz): 1: 942 2: 968 3: 771 4: 982 
           5: 976 6: 868 7: 892 8: 943 
Graphics:  Device-1: Intel vendor: Dell driver: i915 v: kernel bus ID: 00:02.0 
           Display: x11 server: X.Org 1.20.5 driver: modesetting unloaded: fbdev,vesa tty: N/A 
           OpenGL: renderer: Mesa DRI Intel UHD Graphics (Ice Lake 4x8 GT1) v: 4.5 Mesa 19.2.8 
           direct render: Yes 
Audio:     Device-1: Intel vendor: Dell driver: snd_hda_intel v: kernel bus ID: 00:1f.3 
           Sound Server: ALSA v: k5.3.0-46-generic 
Network:   Device-1: Realtek RTL810xE PCI Express Fast Ethernet vendor: Dell driver: r8169 
           v: kernel port: 3000 bus ID: 01:00.0 
           IF: enp1s0 state: down mac: <filter> 
           Device-2: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter vendor: Dell 
           driver: ath10k_pci v: kernel port: 3000 bus ID: 02:00.0 
           IF: wlp2s0 state: up mac: <filter> 
           Device-3: Atheros type: USB driver: btusb bus ID: 1-10:6 
Drives:    Local Storage: total: 1.37 TiB used: 39.23 GiB (2.8%) 
           ID-1: /dev/nvme0n1 vendor: Samsung model: PM991 NVMe 512GB size: 476.94 GiB 
           ID-2: /dev/sda type: USB vendor: Western Digital model: WD10EVVS-63M5B0 size: 930.86 GiB 
Partition: ID-1: / size: 248.92 GiB used: 37.90 GiB (15.2%) fs: ext4 dev: /dev/nvme0n1p4 
Sensors:   System Temperatures: cpu: 63.0 C mobo: N/A 
           Fan Speeds (RPM): cpu: 0 
Info:      Processes: 307 Uptime: 3h 05m Memory: 7.55 GiB used: 5.00 GiB (66.3%) Init: systemd 
           runlevel: 5 Compilers: gcc: 7.5.0 Shell: bash v: 4.4.20 inxi: 3.0.32

jefro · 04-10-2020, 02:38 PM

Use some network diags maybe for more information? Try to log into your router? Could it be some lease issue?

scasey · 04-10-2020, 05:58 PM

Agreed. If the WiFi shows connected on the ‘puter, and also shows no internet, that indicates an issue with the router or wireless access point, not on the ‘puter.

frankbell · 04-10-2020, 07:45 PM

I'm also inclined to think that the problem is outside your computer.

For testing purposes, you might take the laptop to a place with wireless access (a library, perhaps, or a coffee shop) and see whether it maintains a stable connection for a reasonable amount of time. To further narrow the list of suspects, you might also test with a wired connection using a known-good cable to your router.

leo_kor · 04-11-2020, 12:45 AM

That's a good idea, though it seems like now is not the best time for testing my laptop connection somewhere away from home.

Could you suggest me a shell script that I may use in order to reset my Internet connection when it does not work?

ferrari · 04-11-2020, 03:26 AM

No need for shell scripts. Are you using NetworkManager to control your network connectivity? I know some users use other frameworks. This might tell us that...

Code:

sudo systemctl status network.service

Otherwise check out
https://linuxconfig.org/how-to-resta...c-beaver-linux

ondoho · 04-11-2020, 04:18 AM

Can't hurt to check this:

Code:

ping archive.org
ping 1.1.1.1

If the latter works, but not the first, your problem is "only" with DNS.
The command from the previous post should also help clarify things.

Beyond that, I heartily recommend getting familiar with your router. Most have a Web UI you can log into from your desktop.