Questions tagged [connection]

Questions concerning network connections.

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9 views

Cannot connect bluetooth W-Touch touchpad to ubuntu

I just bought a nice touchpad, working on Windows 10 but I'm not able to run it on Ubuntu 20.04 and I'm pretty sure there is a way to do it. Product link : https://www.brydge.eu/products/w-touch My ...
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102 views

Why does the Ubuntu Software application think I am offline when I am online for all other applications and services?

I can update my system using apt and the Software Updater application on my Ubuntu 21.04 laptop. But I can not longer use the Ubuntu Software application. It keeps telling me "Go online to check ...
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29 views

How to share hotspot from wifi connection in Ubuntu 20.04?

I know that it's easy to share hotspot from wired connections, but if I'm in a wireless connection I can't share a hotspot from my laptop.
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Lost internet connection, alsamixer and the driver itself after installing 'metapackage-nvidia-driver-server-450'

I'm a new Ubuntu user (Ubuntu 20.04 lts), just installed it 4 days ago and ran into trouble. 2 days ago, I got an issue in which I had to move to a previous version of the current nvidia drivers. I ...
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2answers
49 views

connect two computers to send and receive data in real time

I have an old robot that only works with Ubuntu 14.04 and Python 2. The robot arm is controlled using ROS1. I wish to program the robot using python 3. I cannot upgrade the robot or its operating ...
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44 views

Wifi will not automatically reconnect when I restart (Ubuntu 20.04)

It requires me to forget the network, switch off the wifi, switch back on and reenter the password each time. I'm new to ubuntu so I have no idea what I'm doing. I tried the following fix and it didn'...
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19 views

Realtek Ethernet unclaimed network

recently installed ubuntu 20.04 and tried connecting through ethernet but not working. Ran lshw -C network and found this out:
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1answer
22 views

Send messages to devices on a LAN

We are setting up a small computer gang and want to have a LAN with a chat channel, but without the need to connect to the WAN and use external services like whatsapp or signal etc. Is there any way/...
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1answer
24 views

Connection failed - Activation of network connection failed

I have a Dell Inspiron laptop running Ubuntu 20.04.2 LTS. The system has always connected to my home WiFi automatically on start without any problems. Since two days ago every time I start the system ...
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23 views

ethtool speed - Problems

Today I got my 500 Mbits line, at the beginning ethtool was set to 100Mbits so I didn't get the full speed. After I had unplugged and plugged in again, 1000 Mbits was displayed. Just now the Internet ...
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34 views

How to fix “Connection Failed” in Ubuntu

I recently made a switch and installed Ubuntu. Everything was working fine and all, until I changed my network's DNS to 8.8.8.8,8.8.4.4 . Now my pc can't connect to our wireless connection. I tried to ...
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Problem trying to connect my ubuntu-server using my MacBook Go-->connect to server option

Problem trying to connect my ubuntu-server using my Go-->connect to server option and I get this error msg. There was a problem connecting to the server xxx.xxx.x.xx The server may not exist or it ...
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38 views

How can I hide my laptop from my TV? (Samsung Smart TV)

On our computer, which is used by whole family, we have AllShare app installed for watching films from computer on TV. Smehow, my laptop appeared in the same place as our computer on the TV with name ...
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1answer
42 views

Ubuntu limiting my shared connection to 10mb/s

I am using a laptop to share internet to my pc, via lan cable. I have a 50mb/s line however the connection that I am getting on the pc is 10mb/s. the laptop itself is recording between 45-50mbps on ...
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1answer
63 views

Ubuntu server ports refuse connection occasionally

Background I have Ubuntu 18.04.5 LTS (server) running multiple services, including the usual ssh, samba and then quite a few other things, including home automation, Nextcloud, etc. It serves up my ...
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bluetooth losing connection after kernel update to 5.4.0-66

After I updated my kernel to 5.4.0-66 (ubuntu 20.04.2), my bluetooth devices (logitech mx keys and G603) loses connection all the time. Here are some basic commands outputs to debug. lspci -vvv 00:14....
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Bluetooth turned on, but not working, ububtu 20.04

My Bluetooth is shown to be on, but the it says that it is turned off: When I run dmesg | grep -i bluetooth, I get this error: I tried the solutions here but nothing seems to work: https://unix....
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56 views

Intermittent connection refused issues when accessing server running Ubuntu 18.04.5

I have a VPS set up at a hosting provider running Ubuntu 18.04.5 and recently experience intermittent connection refused issues. The connections can be going through alright for a while and during ...
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1answer
40 views

How can I Set wait_timeout for a Spesific Database on MySQL?

I am setting a global wait_timeout value on my.cnf file but I want to set different wait_timeout values to different databases and it must not be in software side, I need to make it on MySQL service ...
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37 views

XDS gui installation - no route to host

I'm trying to install XDS on Linux Subsystem for Windows following guide in this document. So far I've successfully install xds package (step #3). I want to install XDS-Viewer etc as well (step #4) ...
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34 views

server ubuntu xrdp connection problem

I tried to connect into my server ubuntu from a remote ubuntu pc using remmina but i suddenly encountered this connection problem. I tried using another person's server profile and it works perfectly, ...
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1answer
26 views

Internet not working even though connected

I have been running Ubuntu on my Dell laptop for almost half a year. Wifi has had some connectivity issues in the past but now all of a sudden I cannot access the internet at all. I have tried both ...
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54 views

Activation of network connection failed HP Probook 650 G1

I have a HP ProBook 650 G1 with a bootable USB stick with Ubuntu 20.04.2. Wi-Fi works, but the ethernet connection gives periodically: Activation of network connection failed. The ethernet port is ...
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1answer
52 views

Why do the following netstat, ps, and auth.log have such output?

I seem to be getting a lot of different connections (ssh) on this Ubuntu server I am sshed into. Are these just brute force attempts? When running netstat -tnpa | grep 'ESTABLISHED.*sshd' why do I get ...
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Lost dongle on Razer headset. Can it be fixed?

I have Razer Thresher, Man of War and R. Electra headsets all wireles without dongles so I cant connect them. Is there a way to install drivers on some dongle or replacment? But im more intestred in ...
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When VPN is connected it disconnects other clients connections to the server

Connecting to EnterpriseVPN Gateway from Ubuntu 20.04 I'm on Ubuntu 20.04. I followed the tutorial here to install and connect to a VPN, which worked brilliantly. I'm using PuTTy and WinScp to connect....
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23 views

Internet connection via WIFI stops/slows down significantly after turning on bluetooth

After turning on Bluetooth and connecting headphones, laptop stays connected to WIFI but internet connection goes down. Here's output for lspci -nnk | grep -iA2 net: Subsystem: Lenovo QCA9377 802....
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1answer
103 views

Setup new connection in mysql workbench using standard TCP IP over SSH

Could not read the contents of .ssh directory Error opening directory '/home/[username]/.ssh': Permission denied I can see in the list of running processes that mysql-workbench is not running as root ...
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61 views

Bluetooth suddenly turn off and won't turn on on Ubuntu 20.04.1 LTS

I'm using Ubuntu since a week now, the only issue I have is the Bluetooth suddenly stop working and turning on is disabled in settings saying "No Bluetooth found - Plug in a dongle to use ...
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61 views

How to set wifi to automatically connect to strongest signal

I note that when I turn on the Wifi for my Ubuntu 20.04 computer, it always connects to the last connected network (if possible). I would like it to connect, instead, to the network with the strongest ...
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313 views

ssh connection refused headless install

I am trying to do a headless install of ubuntu 20.04 on my raspberry pi 4, however when I try to connect to the Pi via SSH I get the error message "Connection refused". I have tried copying ...
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I should be getting 300mbps but now I am getting around 25mps (download and upload)

I just installed ubuntu 20.04 on my Lenovo y740. I deleted Windows 10. Windows was super buggy and I had connectivity issues. My ISP's plan is a gigibit plan. While windows was working, I was getting ...
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WiFi connection keeps dropping after short time

WiFi card worked fine for nearly a year until recently. Now it keeps dropping and reconnecting. I have tried shutting off power management but did not resolve issue. Card is Realtec PCI card. I'm ...
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14 views

WiFi network options are not available after restart [duplicate]

I'd like to state off the bat that I am a complete noob to ubuntu so i apologize in advance if this is simply an easy fix that flew over my head. Ive been running ubuntu on my laptop for some time now ...
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240 views

How to keep SFTP connection alive?

I frequently connect to an Ubuntu VPS using SFTP from an Ubuntu desktop using the command line. The server disconnects me after a ridiculously short period of inactivity… something like 180 second or ...
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High internet speed (using LAN) on ubuntu 20.10 system, but low speed on devices (android smart phones) after connecting to ubuntu hotspot

I recently switched on to Ubuntu 20.10 from my Windows OS. I connected my laptop having Ubuntu to internet via LAN, and the speed on it is fine, ~100 Mbps. When I created hotspot on laptop to get ...
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33 views

WiFi connection issue

I am not able to connect Kubuntu to WiFi . I can only connect with wired connection .Please tell me how can I connect it to WiFi.I am also not able to find any video on YouTube.
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75 views

Can't remotely connect to MongoDB on Ubuntu 20.04 remotely

I currently encountered a problem that MongoDB on Ubuntu 20.04 rejected my remote connections although I allowed my IP through ufw as well as adjusted the bindIp in mongod.config file. I did the same ...
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113 views

SSH Ubuntu server not replying to mac client

I'm trying to connect to my Ubuntu server from my macbook client through ssh. Port 22 is open and the server is not behind a router. I've run sudo tcpdump -i any port 22 -n -Q inout The request is ...
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20 views

set wireless connection as default internet and use wired for connect to the local computer

I'm using wire connection for remoting to windows10 pc directly by remmina remote desktop but when it's connecting wireless internet can't work. ubuntu 20.04.01 LTS I want connect a computer by wire ...
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21 views

Ubuntu - both wifi and enthernet conection aren't recognized

've got strange problem with ubuntu (20.04.1 LTS 64bit). Ubuntu doesn't recognize any internet connection, in fact it doesnt even recognize wifi and enthernet adapters. (ifconfig -a only shows lo and ...
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20 views

Dongle WiFi USB stick excruciatingly slow. PasteBin.com diagnose

I have D-Link wifi stick. I was following https://ubuntuforums.org/showthread.php?t=2404659 Diagnose result posted here https://pastebin.com/NBzg9Kzr Can anybody suggest a way to please speed things ...
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223 views

After upgrading to ubuntu 20.04 - Failed to apply network settings. you might not be able to connect to the Bluetooth network via this machine

I recently upgrade my system from Ubuntu 18.04 to Ubuntu 20.04. In Ubuntu 20.04, I’m unable to connect my Bluetooth headphone with my system (Dell, Inspiron 14, 3000 series). I have also Windows OS ...
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1answer
153 views

Ubuntu 20.04. laptop closed lid issue

I am solving a minor issue with my Ubuntu 20.04. Focal fossa. This might be relevant for all users using a laptop closed aside with an external display. Whenever I shutdown or reboot the computer (...
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295 views

Check Point Endpoint Security VPN Connection with SecTrail MFA

I can connect a VPN by using Check Point Endpoint Security VPN tool in Windows 10 with SecTrail Authenticator, and now trying to do this in Ubuntu. Can you please explain how I can do that in Ubuntu ...
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1answer
965 views

connect to vpn in ubuntu 20.04 problem

I have VPS windows server that have VPN enabled on. I'm already connected to that VPN with android phone and windows10. but i want to connect to that with Ubuntu 20.04 and get "connection failed&...
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20 views

establish a connection to google server

My problem is since I install ubuntu I struggle to open a google search page www.google.com or any sub-page of google, for example, google.com/adsense/ Knowing that my internet connection is good and ...
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0answers
28 views

Wired connection totally disappeared from the settings

My pc is connected to the router which provides connection data automatically [ip,dns and all other] I have dual boot in my pc, windows and ubuntu, The wired connection works fine in Windows, but no ...
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1k views

How to solve ssh error “ssh_exchange_identification: read: Connection reset by peer” on ubuntu server correctly

Related very closely to question and answers like: How to fix "ssh_exchange_identification: read: Connection reset by peer" error? My reputation is too low to comment or provide answer ...
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41 views

Connection error while setting up academic VPN

I am trying to set up my university's VPN on my ubuntu so that I can access the university's network from my home. But it always ends up with an error "activation of network connection failed&...

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