Questions tagged [connection]

Questions concerning network connections.

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Why is my ssh connection dropping after an uncertain time

I am using ubuntu terminal to connect to my aws ec2 instance using ssh -i myaws.pem ubuntu@1.1.1.1 It connects me to server successfully, I am able to execute few commands (alomost within a minute) ...
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what is the solution to connect with mongoDB?

● mongodb.service - LSB: An object/document-oriented database Loaded: loaded (/etc/init.d/mongodb; generated) Active: failed (Result: exit-code) since Sat 2022-06-18 10:38:30 +0545; 49s ago ...
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Bluetooth connectivity disconnects ubuntu 22.04 lts

When I connect the Bluetooth headphones with the computer is successfully connected, but when I turn on a voice multimedia the connection is disconnected and the audio comes out with the headphones of ...
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phpmyadmin mysqli::real_connect(): (HY000/2002): Connection refused

I have this phpMyAdmin error on Ubuntu 22.04 on WSL2 running in Windows 10: Kernel: 5.10.60.1-microsoft-standard-WSL2 I have already tried to create a user. CREATE USER 'pallino'@'localhost' ...
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Ubuntu 22 - After updated, i can't find my proxy when i'm in vpn

I was with Ubuntu 20 and i updated to Ubuntu 22. After it, i can't connect with internal sites into vpn that need a proxy configured. It's not my internet connection because in another notebook, it's ...
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No Internet Connection with external network card

I bought a USB Wifi TP-Link AC600 Archer T2U. I Installed the drivers my laptop recognizes it. I disable my internal card so I can use the USB one and I connect to my router just fine but I get no ...
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Unable to install Git. "Connection timed out" and "could not connect" error showing [duplicate]

I am new to programming, currently trying to install git but unable to do so...it showing following output on terminal. dell@dell-Inspiron-5520:~$ sudo apt install git [sudo] password for dell: ...
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Ubuntu 22.04 - "Connection Failed: Activation of Network Failed" - VMware

I recently installed an Ubuntu 22.04 distribution on my Virtual Machine (VMware Workstation 16 Player) in order to run Docker. In order to connect the VM to the internet, I'm using an USB WiFi Adapter ...
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The ssh connection does not accept the password and pubkey

I connected my remote server through ssh, which is Ubuntu. And the I updated/upgraded because it has been while since I upgraded. Then I tried to connect again on another terminal but it didn't accept ...
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I'm unable to connect archives.ubuntu.com to install aptitude how do i am supposed to do [duplicate]

I am a beginner and i want to install the package aptitude but i'm unable to connect archives.ubuntu.com (sorry for my bad english i'm french)How do I am supposed to do? it show me this message: Err:...
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284 views

Can not connect Arduino IDE with Arduino Board on Ubuntu 22.04

I have freshly updated my Ubuntu 20.04 to the new 22.04 LTS release. I have installed the Arduino IDE and add my user to the groups tty dialout uucp plugdevs. When I connect my Arduino Nano per USB to ...
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Ethernet connection is lost after dual-booting W10

I did clean installs of Ubuntu two times hoping it would get my internet connection back. It did. But after I switch back to Windows 10 and switch again to Ubuntu, I can't connect to ethernet. I am ...
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Why does my wired internet spontaneously disconnect?

Ubuntu 22.04 LTS. To preface, I should mention that I am using a WiFi router as a repeater node for my local network. Previously this setup worked 100% without issue with its placement and cords with ...
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2 votes
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How to fix this Wifi problem in Ubuntu 22.04?

I recently switched from Windows 10 to Ubuntu 22.04. When I try to connect to my router WIFI can't establish connection, but when I share from my Android phone, WIFI establishes the connection and it ...
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Problems with vpn in Jammy Jelly

I just installed Ubuntu 22.04 and I'm having trouble with a VPN (https://www.vpnbook.com/freevpn). I import the data from the file, put the loggin and password and when I activate the VPN I receive a &...
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Dual stack IPv4/IPv6 on 18.04 LTS and 20.04 LTS kills website user experience, unclear how or why

I've been running IPv6 enabled (dual stack) hosts for years. Ubuntu back to at least 16.04, maybe 14.04 and to present day. I figured this was settled technology and there were no gotchas in our ...
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How do I check if the ssh connection is correctly set up?

I need to transfer data using scp from ubuntu server1 to ubuntu server2. I have created and set up ssh credentials between the two servers. How do I check if the ssh connection is correctly set up?
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usb ethernet adapter interface not working in ubuntu 21.10 in virtual machine

I have the following scenario: I have as host operating system windows 10 x64 and as guest operating system linux ubuntu 21.10 in virtual machine. I want use a usb/ethernet adapter 3.0 type c in linux ...
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outlook mail times out

When I try to go to outlook.live.com in firefox or chrome it always times out. If I use thunderbird or if I use my phone with only a wifi connection they get my messages immediately. If I try to use ...
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Is there a way to check whether my device is currently using the 2.4 GHz or 5 GHz WiFi band?

If my Ubuntu device is connected to a dual-band WiFi SSID that uses both 2.4 GHz and 5 GHz WiFi, then my understanding is that it will automatically switch between the two bands depending on which one ...
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Both wifi and ethernet are gone after updating Ubuntu 20

After updated Ubuntu 20 I lost internet connection. Both the Wifi and Ethernet are now missing from the settings, all I see is VPN and proxy settings. ifconfig does not show the usual eth0, eno or ...
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NetworkManager(nm-tray) network manager nm-tray connection lost no longer connected to 802-3-ethenet

My Lubuntu frequently popup this message, this doesn't mean to occur 100%, it usually occurs a period of time after booting, or it more likely occurs when the host win10 bootup from hibernation but ...
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Bluetooth problem on HP Laptop

I installed ubuntu on my HP laptop, everything except Bluetooth works fine. When I run rfkill list I get the output 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no When I run sudo ...
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installing poppler-data failes on ubuntu Ubuntu 20.04.4 LTS

root@2172269688e3:/# apt-get -y update && apt-get upgrade -y && apt install -y poppler-data Hit:1 http://security.ubuntu.com/ubuntu focal-security InRelease Hit:2 http://archive.ubuntu....
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UFW blocking vpn connection - firewall killswitch

I have a very strange problem! UFW is blocking vpn connection: despite I allowed it in firewall (UFW). It is not router! When I disable UFW it works! I used this guide to set it up: https://www....
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Certain programs having trouble connecting to the internet after resume

I am facing a rather odd problem that I have only since I freshly installed 21.10. I've scoured the internet far and wide, not coming to any answer. Spent long hours trying to dig through apparmor, ...
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Can not connect Ubuntu Server ssh from outside

We have ubuntu server installed on our desktop machine. It is connected modem with ethernet port. We can access it with ssh via inside of our network. But can not from outside. Here is what we've done ...
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No WiFi internet

I've been using my computer all morning today as usual. I put it on sleep and went out for a while. After 1 hour or so when I woke it up, it showed no internet. But I checked all my other devices and ...
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Ubuntu in dualboot. I can't see my wifi anymore but I can see my neighbour's and can use phone hotspot

Today I switched from my router wifi to my phone's hotspot and I couldn't find my router anymore in the wifi settings. I tried connecting using the hidden network option but it didn't work. I ...
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Using X2go Client

I am a beginner with Ubuntu. I have tried to install x2go. I was able to install server and client. when trying to run a session on x2go client I receive the following error list. Connection failed. ...
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4 votes
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Can't use internet because networkmanager has disappeared !! (Ubuntu 20.04 LTS)

I need help, and it is quite urgent. I had connections issues (my Wi-Fi connection kept disconnecting) So I followed what a member of this community recommended, in a similar post written by a fellow ...
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1 answer
328 views

Sony WF-L900 LinkBuds Bluetooth Earbuds not recognized as audio device

I am trying to connect my Sony WF-L900 LinkBuds to my laptop with Ubuntu as bluetooth headset. The device is found and I can pair without issue, however, it does not appear as audio device to select. ...
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I have no access to the internet and lost my desktop and terminal

Dear ubuntu enthusiasts, I've started my computer and was shocked as I have no access to the ethernet internet and lost my desktop the major part of the settings are not showing, and I have no ...
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Bluetooth devices not showing up in pairing mode Ubuntu 21.10 / Kernel 5.15

Found a Solution here: Bluetooth service failed to set mode My Bluetooth seems to be running but it will not show the devices in pairing mode. I have attached the status below. Thank you. ● bluetooth....
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NetworkManager randomly crashes resulting in lost connection to Internet and local network

I have the following problem: whenever my server is exposed to the internet, it becomes unreachable after a certain period of time. The time periods vary. Whenever that occurs I can ping the server ...
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Wired Ethernet Connection Settings are not changed

I have a verison of ~$ cat /etc/os-release NAME="Ubuntu" VERSION="20.04.3 LTS (Focal Fossa)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 20.04.3 LTS" VERSION_ID="20....
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Why some Wi-Fis do not work (Ubuntu 20.04)

I installed Ubuntu 20.04 from Windows on my HP 255 G7 some months ago and always had troubles with WiFis. With university's WiFi everything is fine, when I'm home the connection is very weak and now ...
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Problem with the ethernet connection

I'm having this problem with my ethernet internet connection. My PC connects without problem, I can browse and watch videos on YouTube, the problem occurs when I download something greater than 50 MB, ...
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Intermittent wireless internet connection

My wifi connection is always failing. On my phone the wifi connection is normal (not super-high but medium) and on my laptop the connection is constantly failing. This time I took a print-screen of ...
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Problem with wireless mouse and internet(crashes) Internet stops working with usb plugged. some times

I'm using budgie, ubuntu 20.04. The mouse works perfectly in a few days. On other days, it is constantly causing problems. The internet crashes, I can't access any pages. When I remove the usb plug ...
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Wired connection on Ubuntu became unavailabile after a RealTek ethernet driver update

How it started Since I've installed Ubuntu 20.4 as a dual boot on my machine, I've had connectivity issues . Drivers were working out of the box but what was strange was that every couple of hours I ...
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2 votes
1 answer
190 views

I changed permissions in my /home dir to 750 and files in it now I'm not able to connect the server [duplicate]

I changed the /home dir to 750 and files in it. Now I'm not able to connect the server with SSH public key. It’s showing the error Permission denied (publickey).
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609 views

Authentication fails AD

Good day to all. Raised Ubuntu 20.04, entered it into the domain. However, it turned out that the user, after a reboot, cannot log in to the system under a domain account. BUT, if you cut off from the ...
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87 views

How to connect to my phones's hotspot automatically as soon as it is detected by my desktop?

I have two devices through which i access the internet on my Ubuntu 21.10 desktop:a portable broadband device (always active/on) and my android phone's hotspot (active occasionally to save battery). ...
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Cannot connect to server after release upgrade

I was in the process of upgrading an old 16.04 LTS, and seemingly locked myself out with no way back in. Help. I followed the basic steps: sudo apt-get update sudo apt-get upgrade -y sudo apt-get dist-...
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2 votes
1 answer
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Ubuntu 18.04. Sudden DSL connection degrading - on and off - inconsistent slow connection to websites

I have been using my rig with no problems for 2 years. Nothing change in the last days in terms of ISP etc... Suddenly I am experiencing troubles with my internet connection. Often I go to my favorite ...
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No internet, non existent wired connection showing, still connected to wifi

I've been googling for the past 2 hours and could not find a solution. It all started when my computer froze, so i looked up online and rebooted it holding alt and prtSc snd typing r e i s u b After ...
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327 views

Ethernet connection doesn't connect 20.04.2

i've recently tried to connect my lenovo thinkpad with ethernet(both PCI entry, and USB ethernet via docking station). At first it did connect, but then i changed my ISP and ever sicne my connections ...
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Intermittent wifi connection on Ubuntu 20.04.3 LTS

I just recently moved to the Linux world, and my welcome has been an intermittent WiFi issue. The connection comes and goes. I have already tried to change the power saving configuration to 2 and ...
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Failure in pairing bluetooth device in Ubuntu 21.04

I see that failure in pairing Bluetooth devices is commonplace. I have Ubuntu 21.04, I plugged a Bluetooth 4.0 Adapter Dongle, the device (headphones) is visible but no pairing is obtained. I checked ...
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