Questions tagged [networking]

Managing and using network connectivity on a Ubuntu system

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Intel AX200 Wifi works but Bluetooth doesn't

I am running Ubuntu 20.04.1 LTS and have an Intel AX200 Wifi 6 (Gig+) wifi/bluetooth card. My wifi works just fine but my operating system doesn't seem to recognize that the card also supports ...
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1answer
53 views

(Resolved) won't boot normally or from recovery mode - no internet connection (Ubuntu 20.04)

I had unresolved previous issues booting from recovery mode, now nothing seems to work and normal booting also gets stuck before the login. when loading this message appears: Failed to start System ...
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0answers
28 views

Can't update (404 Not Found [IP: 91.189.91.38 80])

I'm running ubuntu on a raspberry pi 4 (8GB) and I cannot for the life of me get it to update because I think it can't find 91.189.91.38 80 for some reason even though I can go there through my ...
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1answer
4k views

DNScrypt proxy and Ubuntu 16.04 - can't run it on startup

I have upgraded to Ubuntu 16.04 and I have installed dnscrypt-proxy from repository. Then I have just edited the /etc/default/dnscrypt-proxy file changing the DNSCRYPT_PROXY_RESOLVER_NAME="" line with ...
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0answers
19 views

Can't get outside gateway

My problem is a client computer can't get outside gateway when the client uses the vlan interface of gateway. IP addresses gives the router through dhcp (for vlan and non-vlan interfaces). Some output ...
5
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2answers
5k views

Wireless not connecting automatically

My wireless is working fine, but when I login, it does not connect automatically, I have to select it from the list each and every time to use it. Even though the connect automatically option is ...
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2answers
5k views

apache2 on ubuntu 14 - localhost works but ip doesn't

I've just installed apache2 on my box, along with php5. I can navigate to "localhost" and it works. But I can't access this webserver from another machine... or even locally using the IP ...
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0answers
24 views

Wifi signal drops out when streaming online videos on 20.04

I have a stranger problem whenever I try to stream online videos my wifi signal drops and eventually it gets disconnected. This problem doesn't happen to me on windows. On my router settings, it ...
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0answers
38 views

Purged resolvconf, now I can't access the internet

I am using Lubuntu 20.04 I read a bunch of questions and followed a suggestion to purge resolvconf: apt-get remove --purge resolvconf after that I tried this: wget 141.30.13.20/ubuntu/pool/main/r/...
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1answer
56 views

Ubuntu 11n_disable=1 Network Doesn't Work

I am experiencing the network speed low issue. There is a options iwlwifi 11n_disable=1 line in my /etc/modprobe.d/iwlwifi.conf file. With that line, my network link speed is dead on 54 Mbps, the ...
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1answer
36 views

Kerio VPN Client Connect but not work in 21.04

In Ubuntu 21.04 latest version of the Kerio VPN client (kerio-control-vpnclient-9.3.6-5738-linux-amd64.deb) is connected but not work and even the gateway of VPN not reach. I think some network ...
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2answers
193 views
+500

How to improve/fix choppy audio when streaming with pulseaudio?

The issue: When streaming across the network using via pulseaudio, the audio is extremely choppy. Editing /etc/pulse/daemon.conf and changing the default-fragments and default-fragment-size-msec ...
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2answers
2k views

APT: Could not wait for server fd - select (11: Resource temporarily unavailable) [IP: 10.158.100.1 8080]

My internet connection is behind a proxy, which I've configured in the GUI, in the environment variables, in /etc/apt/apt.conf.d/, in /etc/apt/apt.conf. I receive this error every time I attempt to ...
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1answer
25 views

Blocked internet traffic for device seems to be leaking out to internet

I have an Ubuntu box that DHCP assigns a static IP address (Based on it's MAC address) at 192.168.2.12 with the Local gateway at 192.168.2.1, I want to block internet traffic to it and from it, but I ...
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1answer
8k views

Wireless Card Restart on Ubuntu 18.04

I want to restart the network service in Ubuntu 18.04. I tried /etc/init.d/networking restart but the command didn't come out as expected. Can someone help resolve my issue?
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0answers
29 views

SSH connection works but does not change which machine I control

First of all, sorry if my technical terminologies are off, I hope I can make myself understood anyway. I have this weird problem with SSH. I have 3 computers which connect to each other, the server ...
1
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1answer
460 views

HTTPS connection failure when trying to open AWS console

I have some very strange problem with connecting to AWS Cloud Console on my Ubuntu 18.04 host. When I open https://aws.amazon.com/console/, I can click on the "Sign in" button at top right, the URL ...
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0answers
47 views

Cannot enable my network adapter - Failed to start Raise network interfaces

I need some assistance. I was following some instructions (https://thedarksource.com/how-to-solve-this-adb-server-version-doesnt-match-this-client-error-in-android/) to configure Android Studio so I ...
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0answers
32 views

Create a VPN connection on remote linux server

I connect to remote Linux server via putty and now I have to create a VPN on it. as I do not have an access to GUI so only thing I have interaction with is terminal and I have to mention that there is ...
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0answers
34 views

NFS can be seen on network via direct input, but not discovered

Ubuntu 20.04 and my NFS shares are alive and well but I can not find them unless I type them in manually. This started once I installed samba, but if I disable samba, it does not allow them to be seen....
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0answers
18 views

What USB 3 AC1200 (or better) WiFi dongles are supported out-of-the-box on Ubuntu 20.04?

Around here, the following are easily available: Asus USB-AC68 D-Link DWA-185 D-Link DWA-182 D-Link DWA-192 Linksys WUSB6400M Netgear A6150 Netgear A6210 TP-Link Archer T3U Plus TP-Link Archer T4U I'...
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0answers
170 views

Network don't recognize Printer's Scanner “Ricoh”

I have a "Ricoh Aficio MP 2851" Printer/scanner/fax all in one used on top of a my home router. On Windows, it works fine using TWAIN. On Ubuntu 20.04: The printer is found automatically. ...
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1answer
7k views

How to enable IPv4 on ubuntu 16.04.1 LTS server

I have VirtualBox running on my ubuntu 16.04.1 LTS host. I created a new virtual machine and set the network type to "Bridged Adapter". I then installed 16.04.1 LTS on the guest, but I cannot connect ...
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2answers
42 views

How to fix no internet when using a USB network adapter

I'm very new to Linux, so please point anything out if I get it wrong. About 1 year ago, I built a PC and ran only windows on it. I purchased a USB Wi-fi adapter which supported Windows and apparently ...
0
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1answer
33 views

How do I create a wireless access point using only one wireless NIC but 2 different SSID:s?

I would like to create a wireless access point using only one wireless NIC but having 2 different SSID:s, is this even possible? It would be perfect if clients connecting to the different SSID:s also ...
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0answers
15 views

Unable to establish connection over specific port in devices connected via VPN

I have an Ubuntu virtual machine on the Google Cloud Platform, which runs an OpenVPN server. In my office, an Ubuntu laptop and a Windows PC act as OpenVPN Clients. Hence, on the VPN, the following ...
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4answers
22k views

DNS issues after upgrading to 20.04

After upgrading to 20.04, both my wired and wireless networking lost access to the internet. I confirmed my drivers were working when I was able to resolve a ping to the Google nameserver 8.8.8.8. Now,...
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0answers
7 views

network failure 20.04 X399 Phantom Gaming 6

Daer community, I have a X399 Phantom Gaming 6 that has 2 network adapters. One is connected to a NAS, the other one to the internet. (1) Intel adapter: crash every few weeks. Is restarting if I ...
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2answers
3k views

Automatically connect to a hidden wireless network

Ubuntu 19.10 doesn't automatically connect to saved hidden wireless networks. I have each time to go to Settings → Wi-Fi → ⋮ (3 dots menu on the top right) → Connect to Hidden Network to get connected ...
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0answers
26 views

I cant use my wifi adaptor

Hi guys i am a new user to linux my wifi adaptor was working fine in windows 10 when i boot into ubuntu i did registor in ubuntu Wifi adaptor -- https://www.mercusys.co.in/product/details/mu6h plz can ...
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0answers
8 views

Computer locks up after network placed in airplane mode and placed in hibernation

My Computer locks up after the network is placed in air-plane mode and placed in hibernation. Any idea how to fix / trouble shoot this? I'm using a Alfa AWUS051NH usb external WiFi Adapter much ...
7
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3answers
4k views

SSH fails with connection timed out - in VPN and hangs here “expecting SSH2_MSG_KEX_ECDH_REPLY” + Ubuntu 16.04.6 LTS

Raised bug -> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874257 SSH timeout issue, once connect to VPN. Connecting via putty fine. No changes made before. VPN established by open-...
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0answers
27 views

Ubuntu 20.04 losing network connection every night at some point after midnight

I still consider myself a Linux noob. I have a Lenovo M710q running 20.04. As far as I can tell, the machine is running just fine. It has a wired connection. I'm using it as a Plex server. Every ...
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1answer
3k views

WiFi-driver not Found in Mini PC (Ubuntu 18.04)

I purchased mini PC yesterday with pre-installed licence version Windows 10. Bluetooth, WiFi and Ethernet are working fine. When I install Ubuntu (18.04) on my mini-PC it doesn't show WiFi. The ...
4
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4answers
25k views

Ethernet connection not working on Ubuntu 20.04

A few days ago my ethernet connection was not working on Ubuntu 20.04 on my computer. I was using two routers: the main one was / is in the living room and connected to the second router which was / ...
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1answer
3k views

How to connect to older samba shares with Ubuntu 20.04?

My other desktop has linux with samba 3.x I recently upgraded my HP15 laptop from xubuntu 18.04 to 20.04 with a virgin installation. I was able to use cif mounting and file sharing back and fourth ...
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0answers
29 views

Ubuntu 20.10 degrading network latency

I'm running Ubuntu 20.10 and after a while my network latency rises This happens even to LAN addresses, for example here's me pinging a computer on the same network. Normally the ping is ~5ms, but ...
0
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1answer
28 views

Kyocera network printer suddenly not reachable on ubuntu

After a reset of our local network, the Kyocera FS-C5250DN printer does not work any more. I tried to remove and add it again: When trying to add, the system settings dialogue finds it in the network ...
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1answer
3k views

How to fix the “Connection failed with error: Failed sending banner …” for ssh?

At times when the remote device is behind a VPN or is in local network, this error shows up: Connection failed with error: "Failed sending banner to ....@..........:22" This shows up infrequently ...
0
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1answer
38 views

something weird happened to sshd. can only access through local network

VERY IMPORTANT EDIT Just because I can't understand the problem, I asked a friend to try to connect to it, and it works. So I asked another friend to try, and it works. Apparently I'm the only one who ...
2
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1answer
322 views

Bluetooth service unable to start without “systemctl restart bluetooth”

I've just received a new HP unit. By default, after a fresh boot, the Bluetooth service is unable to start correctly and does not find any device to pair with nor the NetworkManager's Bluetooth ...
1
vote
1answer
1k views

Torrent doesn't upload

I have a laptop which has windows 8.1 and Ubuntu 14.04LTS installed. Windows seeds the torrent back but Ubuntu doesn't. I have tried several client on Ubuntu but I got the same issue. It can Download ...
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2answers
3k views

Is there any way to make dig work behind a proxy?

With my corporate proxy, curl and wget work fine, but dig and host don't. How can I configure dig to use a proxy?
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2answers
4k views

Failed to start netplan-wpa-wlan0.sevice: Unit netplan-wpa-wlan0.service not found

Setting up my rasbperry pi to work as my personal production testing machine. I've installed ubuntu server 20.04.1 LTS (RPI 3/4) 64bit and desperately trying to setup a wireless connection on it. ...
1
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2answers
9k views

Network disabled - device not ready 16.04

Laptop: Acer V 13 no preinstalled OS. Freshly installed ubuntu 16.04. At the top right corner, when I click the network manager, no wifi networks are found, and there's a grayed out device not ready ...
4
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3answers
6k views

Share a local folder over the internet

Good morning, I have a home server running Ubuntu 15.10 and I would like to share a folder over the internet (not local network) for my colleagues to access. What are the best options? FTP server? ...
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0answers
15 views

accessing ip camera's web server & recorded footage

is there soft to watch ip cameras recorded footage? its low-to-mid-range price hikvision cam, microsd in it & connected via PoE to router. i like this one IP camera viewer but im looking for ...
0
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1answer
20 views

tty7 Server Crash (logs included with problem, unknown solution)

I currently run an Ubuntu 21.04 sever. Recently, I installed VNC on the server. I VNC onto the server by ssh tunneling by running ssh -L 5901:localhost:5900 username@ip -i ~/.ssh/privatekey, then use ...
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0answers
23 views

connect gns3 router to the internet via wireless network card

tunctl -t tap0 ifconfig tap0 10.10.10.1 netmask 255.255.255.252 up iptables -t nat -A POSTROUTING -o wlo1 -j MASQUERADE iptables -A FORWARD -i tap0 -j ACCEPT echo 1 > /proc/sys/net/ipv4/ip_forward
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0answers
11 views

checking bluetooth current transfer rate

Is there anyway I can check the current transfer rate of bluetooth ? I want to check whether my headphones are using LDAC with pc or not by looking at the data rate between the devices.

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