Internet connection randomly stops working

[Efthimios Chaskaris]

Ubuntu says I'm still connected. "nmcli device" says I'm connected. I have to turn off and on again my internet connection(menu in the top right -> name of connection menu -> Turn Off) to fix the issue.

I'm using Wifi. I'm using a USB adapter, TP-Link TL-WDN3200.

Ubuntu 19.04

[Chris Guiver (guiverc)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

Unfortunately we can't start working on it yet, because your bug report didn't include enough information. (for example are you talking about ethernet? wifi? what network hardware you are using , what architecture? etc)

Please include the information requested at https://wiki.ubuntu.com/DebuggingNetworkManager. If you have trouble, do not hesitate to ask for more assistance. Thanks in advance.

[Efthimios Chaskaris (echaskaris)]

I'm confused about the logs, do I have to enter the commands before the issue occurs? I may not get it for even days. I also don't have debug helper.py. Tell me if I can get logs that run regardless. Thanks.

[Chris Guiver (guiverc)]

Thanks for the additional info (wifi), can you please provide more as follows on your hardware, (`commands` are in backticks)

1. `sudo lshw -C network` (ie. list hardware of class=network)
2. `lsusb` (ie. list usb devices)

These will provide details as seen by your computer (really the linux kernel) including chipset details with luck.

re: debug-helper.py: My own 19.10 system doesn't have it either, so for now ignore it (sorry; I'll provide more if/when I can).

(https://help.ubuntu.com/stable/ubuntu-help/net-wireless-troubleshooting-hardware-check.html.en)

[Efthimios Chaskaris (echaskaris)]

efthimios@efthimios-GA-78LMT-USB3:~$ sudo lshw -C network
[sudo] password for efthimios:
  *-network
       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: enp3s0
       version: 06
       serial: 90:2b:34:a3:97:91
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:18 ioport:ee00(size=256) memory:fddff000-fddfffff memory:fddf8000-fddfbfff
  *-network
       description: Wireless interface
       physical id: 1
       bus info: usb@2:3
       logical name: wlx647002072c18
       serial: 64:70:02:07:2c:18
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=rt2800usb driverversion=5.0.0-21-generic firmware=0.36 ip=192.168.1.2 link=yes multicast=yes wireless=IEEE 802.11

efthimios@efthimios-GA-78LMT-USB3:~$ lsusb
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 148f:5572 Ralink Technology, Corp. RT5572 Wireless Adapter
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 0079:0006 DragonRise Inc. PC TWIN SHOCK Gamepad
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 011 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 010 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

[Jeremy (wa113y3s)]

In terminal do

sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/*

Reboot, that will disable wifi power management

[Efthimios Chaskaris (echaskaris)]

I put the adapter in a USB port on the back and the issue still occurred. Now I disabled WiFi power management. Let's see if it occurs again.

[Efthimios Chaskaris (echaskaris)]

Happened again having wifi power management disabled.

[Efthimios Chaskaris (echaskaris)]

I also have ubuntu 19.04, not 19.10, sry