Questions tagged [networking]
Computer networking is the connection two or more computing devices for transmitting and sharing data. The devices use common communication protocols over a physical or wireless connection. Use this tag for questions about managing and using network connectivity on an Ubuntu system.
22,984
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Install mercusys wifi adapter in Ubuntu 20.04
I am trying to install the wifi adapter for the Mercusys mw300uh.
lbusb output:
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 ...
2
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0
answers
271
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Ubuntu 20.04 - Wifi stop working
I installed ubuntu 20.04 where I had ubuntu 16.04, but first I removed the old version and then on that partition I installed the new version, since then ubuntu has a problem with wifi.
Wifi stop ...
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2
answers
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network UNCLAIMED : Lost Ethernet/WiFi drivers after updating to Ubuntu 16.04.6 simultaneously on 2 different computers!
Updated from 16.04.3 to 16.04.6 (over ethernet on one computer, WiFi on the other) and now no ethernet or WiFi, only the loopback.
I am flexible if the solution requires going back to 16.04.3.
I ...
3
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1
answer
1k
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Wifi: Connected to Network, but No Internet
Summary:
My computer connects to the router's SSID, but I have no internet - at least via Browser.
Details:
I just installed 20.04 (was using 18.04 without issue). The SSID (along with other SSID's ...
1
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1
answer
624
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Wifi adapter not found Ubuntu 18.04 tried rtlwifi-new, rtl8723de and bcmwl-kernel-source
I have searched all the answers to this issue but none have worked for me so far.
when I run: lspci -v | grep Network
i get this output:
03:00.0 Network controller: Intel Corporation Device 2723 (...
2
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1
answer
1k
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WiFi: Unable to connect to any network
I have a fresh install of Ubuntu 20.04 with all updates and Intel AX200 which seems to be recognized out of the box. As far as I can see this device should work out of the box starting from kernel 5.1,...
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0
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177
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Ubuntu 18.04 Multi Network Interface doesn't work well
I'm running Ubuntu 18.04 LTS on HPE ProLiant DL360 gen9, and I have a trouble on networking.
I write a config for netplan as follows.
network:
ethernets:
eno1:
dhcp4: true
dhcp6: ...
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0
answers
37
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network manager reinstall problem
I just reinstalled Network Manager, and it does not see any wifi networks around.
I did remove NM because I want fixed IPs both eth0 and wlan0 and I did like the "old" style, but now I am back - no ...
0
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1
answer
2k
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Error configuring static routing using cli
I'm trying to add a static route on my Ubuntu Desktop 16.04 machine with the cli, but with no success. I'm using the classic ip route command: ip route add x.x.x.0/24 via y.y.y.y dev eno1 (hid the ...
1
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1
answer
817
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Cannot Load Sites unless connected to VPN
I cannot access many websites including our own office web portals without using VPN. I tried using sudo /etc/init.d/network-manager restart, and I also attempted to to edit /etc/network/interfaces to ...
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440
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Ubuntu Studio Shared Folder Question
I've been using Ubuntu and Ubuntu derivatives for quite some time now.
Probably once a year or so, I prefer to do a clean install and "start everything over". I have a set of scripts/lists/...
2
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2
answers
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How do I debug DHCP?
UPDATE: The DHCP in the camera does not work as expected and requires a static IP. However tcpdump is your first line of defense, see checked answer below.
I have the following setup:
NVidia Xavier ...
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0
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161
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Wifi not working properly with Ubuntu 18.04 LTS on a Intel AC-7260
I have installed Ubuntu 18.04 LTS on a Thinkpad T540P with a Intel Dual-Band Wireless AC-7260 and the wifi keeps dropping and sometimes it wont allow me to turn it on. What can I do to fix this ...
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2
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3k
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Ubuntu 20.04 can't access my dlink sharecenter
My Ubuntu 20.04 does not access the windows network (D-link NAS-320L Share center), the error is the following:
Failed to mount the windows share: Connection termination caused by software.
In ...
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1
answer
5k
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Cannot install tftpd-hpa
I'm trying to run apt-get install dnsmasq pxelinux syslinux-common through a cluster control node, and keep getting this error while installing.
Job for tftpd-hpa.service failed because the control ...
1
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2
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178
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How do I share ethernet ports with router based DHCP?
I have a quad NIC. Port 1 goes directly to the switch. I would like ports 2, 3, and 4 to basically function as a hub. Anything connected to them should be assigned a DHCP address from the router, and ...
2
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0
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1k
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Can not connect to google
I am using ubuntu 20.04 with hp laptop with rtl8723be driver. I can not connect to google when on wifi. I can access other url. Google shows this error in browser
This site can’t be reached www....
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0
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136
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Network problems on Ubuntu 16.04
I hired a VPS service through Contabo last week so I could ran a Minecraft server on it.
At first I installed Ubuntu 18.04 and everything was working properly, until like 2 days later that It seems ...
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1
answer
382
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Accessing virtual machine from local host
After logging onto the virtual machine though putty, I got
Welcome to Ubuntu 16.04.6 LTS (GNU/Linux 4.15.0-91-generic x86_64)
...
80 packages can be updated.
0 updates are security updates
However, ...
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1
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3k
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How would you configure multiple NICs with DHCP enabled with netplan?
I have a Ubuntu 18.04 server that has three NICs, each connected to a different LAN, and each receiving network information from a DHCP server. By default, from what I can tell, is one interface gets ...
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1
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935
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How do I install ubuntu 20.04 LTS without a wired ethernet connection?
Recently the performance of my 64 bit Windows 10 system has been suffering, so I thought I would look into installing Ubuntu 20.04 LTS on my system.
I downloaded an ISO file for Ubuntu and made a ...
2
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2
answers
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Ubuntu 20.04 LTS - Intel Wireless/WiFi dropping in and out
Summary of the problem:
Since upgrading from Ubuntu 19.04 to Ubuntu 20.04 LTS I notice in VOIP calls I was cutting in and out. I then noticed that this was happening regularly and the wifi was ...
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1
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4k
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Intel AX200 Wifi not working after update to Kubuntu 20.04
EDIT: It turned out to be a hardware issue. Replaced my wireless network card and now everything appears to be working fine.
==========================================================================
...
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578
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Suddenly no internet - Ubuntu 18.04
All of a sudden, I cannot get an internet connection. System is Ubuntu 18.04 desktop PC connected via ethernet, although I've also tried connecting via Wifi to no avail. It's been working fine for ...
1
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1
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3k
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Signing dkms module automatically enabled in ubuntu 20.04
On Ubuntu 20.04 the driver for the realtek wireless card I need is listed under additional drivers in settings. I enabled this driver which is a dkms module, but I can only get this to load on ...
1
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0
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502
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Support for Intel WWAN module in HP Spectre x360
I am planning on dual-booting my HP Spectre x360 13t-ap000, but I rely on the Intel XMM 7560 WWAN card for internet access, and I am wondering if I will be able to use it with Ubuntu. I saw this ...
0
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0
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107
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iptables - drops all connections despite previous rules
I am trying to allow ssh connections from the local network and drop all other connection attempts on the same port (22), here are my current rules in iptables:
-A INPUT -s 192.168.0.0/24 -p tcp -m ...
1
vote
2
answers
2k
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Netplan configuration for a router with 2 or more input ISPs with failover for single output interface?
I have two ISP options where both provide DHCP leases. I want the secondary (and possibly a 3rd when they allow & if needed) as a failover if the first (or second) fails, eg:
After reviewing ...
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217
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I broke my wifi interface configuration with wicd, how can I fix it?
Well, I was managing my wifi connections using wicd-gtk when I read the first option, it said something like "wired network" and a checkbox "use as default profile" and so on (not sure if its accurate,...
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412
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Usb printer on a router
I have a Samsung USB printer that works fine with Windows and Linux when it is connected on a USB port. I recently got a new router (HUB 1000) which has a couple of USB port where I can plug my ...
0
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1
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14
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Browsers will not search, but if i use specific url's I can connect to a website
Ubuntu 20.04 LTS
I have internet connection and it is working.
In multiple browsers I can type in specific URL's and the websites will populate
--however when i try to search in these browsers (ex. ...
3
votes
1
answer
13k
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Ethernet does not work with Ubuntu Server 20.04
I want to install some packages via Ethernet, but it does not seem to be working. I want a DHCP connection.
Here is what I tried:
ifconfig (net-tools was installed via usb)
Which only gives ...
11
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1
answer
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How to install WICD on ubuntu 20.04?
I am using ubuntu 20.04 focal 64bit.
Pre installed network manager is giving me headache. It suddenly drops wifi connection.
On scanning again it shows no visible network.
The input command
lshw -C ...
2
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0
answers
1k
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Intel Wireless 8260 - This Device is not working - Ubuntu 20.04
I am new to ubuntu, previous heavy user of windows and microsoft products, wanting to take back control of my digital privacy.
After a fresh install of 20.04LTS I noticed in the Software & ...
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Running Python scripts on an Ubuntu machine disables the network port
One of the Ubuntu machines I manage is having an issue where it completely disables the network port every time I run a Python script on it. It does not matter what the script is, after about 5 ...
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1
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1k
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Netplan not honored on system boot
My system has services that talks to other servers on the LAN by custom internal domain name. I have netplan setup as follows:
network:
ethernets:
ens160:
addresses:
...
1
vote
1
answer
258
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Wireles adapter not working after upgrade to 20.04
My Lenovo thinkpad E490 stopped having wireless connectivity after upgrade to Ubuntu 20.04.
With my little knowledge of Ubuntu i started researching and i think i know my wireless adapter can be ...
4
votes
0
answers
1k
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Ubuntu 20.04 VPN PPTP doesn't work
syslog error:
May 8 09:54:21 pptpteste-VirtualBox pppd[2367]: LCP: timeout sending Config-Requests
May 8 09:54:21 pptpteste-VirtualBox NetworkManager[2367]: LCP: timeout sending Config-Requests
May 8 ...
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0
answers
79
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DNS_PROBE_FINISHED_NXDOMAIN and Network is unreachable
I have a UBEE EVW321B router in my apartment that serves as a signal splitter / switch and receives a signal through an Ethernet port in my wall from the ISP's router downstairs.
That access point ...
1
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1
answer
479
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Ubuntu stuck on loading on splash screen [duplicate]
I am on the latest Ubuntu and I’ve looked at similar questions and tried everything they’re saying and nothing is working for me and my cpu is kinda old tho
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1
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421
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Can't connect to home wifi, other wifis are fine
I have just installed Ubuntu alongside Windows on my laptop.
But I cannot connect to my home wifi (Xiaomi_Wifi in PasteBin).
How can I fix this? I can connect to my phone wifi (iPhone von Aaron).
I ...
0
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0
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313
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Cannot connect to any Wifi network in Ubuntu 20.04
I upgraded to Ubuntu 20.04 from 19.10 and my wifi adapter is not connecting to any Wifi network. It scans all available networks but is unable to connect to any network.I tried all possible solutions ...
0
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1
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78
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Wifi does not work well on Lenovo Thinkstation P320
I just installed Ubuntu on a Lenovo Thinkstation P320. The wifi was working well on Windows. On Ubuntu, when I select my network and enter the password it just repeatedly asks me to enter the password....
2
votes
1
answer
7k
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How instal Device usb wirelles mediatek - MT7601u RALINK on Ubuntu 20?
I'm new in the linux world.
I'm just installed Ubuntu 20 to try and everything is fine, except by mt7601u wireless device. Ubuntu didn't recognize it at installation. It works fine in Windows 10 and ...
0
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0
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236
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Not able to connect to my other VM using ssh even after entering correct password and changing sshd_config file
Using the ifconfig i found the IP of my VM that i wanted to connect from the other VM(both are mint).
I saw some videos and made both of them with bridged network, I was able to succesfully log in to ...
4
votes
1
answer
235
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Wifi gone after reinstall, Ubuntu 19.10
My wifi was working perfectly, but after a failed attempt to install an Nvme SSD (which involved numerous Ubuntu 20 and then 19 installations from USB to that new SSD) I had to fall back and reinstall ...
2
votes
1
answer
378
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Where does nload get the bandwidth data from?
tl;dr The bandwidth usage recorded by nload (home page) is higher than what's provided by tcpdump (home page).
There seems to be a difference in bandwidth usage when I run tcpdump -e -w - | pv -a >...
3
votes
2
answers
33k
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WiFi adapter not found in ubuntu 20.04 in hp
I have hp laptop. Most of the time my wifi can't connect to any network after 2-3 hours after booting up(it shows unavailable and no wifi adapter found). This problem gets solved by several time ...
1
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1
answer
2k
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Slow WiFi (atheros QCA9377) speed on Ubuntu 20.04 LTS
After I upgrade from 18.04LTS to 20.04LTS my wifi speed droped with 90% from ~400Mb to ~40Mb/sec.
Even with the live usb I have obtained the same results.
I have checked if the ath10k driver is ...
0
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1
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745
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No wifi found ubuntu 18.04 lts Centrino Advanced-N 6230
been typing commands found on web a could not make it to work
sudo lshw -class network returns
network NO RECLAMADO
descripción: Network controller
producto: Centrino Advanced-N 6230 [...