Problem with internet connection --- service NetworkManager restart does not help 21.04

Altario

12/25/22, 9:11 AM

I have a problem with my internet connection. Since Monday, there is a question mark on the wifi icon AND I don't have internet connection. I try a lot of things but nothing works:

The router is classic "SFR Box 8". All the LEDs are on. It's wifi. All my devices except the laptop in question can connect to my wifi router and have internet access. I'm with Ubuntu 21.04 To solve the problem I already tried

sudo service NetworkManager restart

This was not works.

I also tried to go to Settings > Privacy > Connectivity Checking and set it OFF. Then, the question mark on wifi icon disappeared, so the wifi icon is back to normal as I had the internet connection. But when I try to use Firefox I don't have internet connection. Also, ping google.com doesn't work. So I set Connectivity Checking back to ON.

When I try to connect my laptop to another SSID it's work. So I try to "Forget this network" but when I try to connect it again same issue.

Then I try journalctl -u NetworkManager>file to see if there is any warn and I found this

août 25 11:52:22 boubou-Inspiron-5402 NetworkManager[4471]: <warn> [1629885142.9964] ifupdown: interfaces file /etc/network/interfaces doesn't exist

août 25 11:52:23 boubou-Inspiron-5402 NetworkManager[4471]: <warn> [1629885143.2825] Error: failed to open /run/network/ifstate

août 25 11:52:23 boubou-Inspiron-5402 NetworkManager[4471]: <warn> [1629885143.4094] sup-iface[d33d15215efdd0d9,12,wlp43s0]: call-p2p-cancel: failed with P2P cancel failed

Anyone can help me?

1 + 2

networking

David

12/25/22, 9:15 AM

What are the links in your question for?

Altario

12/25/22, 9:20 AM

to show what I try

Score:0

Ubuntu

Altario

12/25/22, 11:46 AM

Problem solved: I download network-manager from ubuntu archive then apt-get remove --purge network-manager and apt-get install --reintall network-manager

0 + 0

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Problem with internet connection --- service NetworkManager restart does not help 21.04

TH: ปัญหาเกี่ยวกับการเชื่อมต่ออินเทอร์เน็ต --- การรีสตาร์ทบริการ NetworkManager ไม่ได้ช่วย 21.04

RO: Problemă cu conexiunea la internet --- repornirea serviciului NetworkManager nu ajută 21.04

RU: Проблема с подключением к интернету --- перезапуск службы NetworkManager не помогает 21.04

VI: Sự cố với kết nối internet --- khởi động lại dịch vụ NetworkManager không giúp được gì 21.04

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.