Questions concerning network connections.

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15
votes
2answers
37k views

Wifi problems with rtl8723be in Ubuntu 14.04

I have dual booted my Windows 8 laptop with Ubuntu 14.04. The wifi driver is Realtek rtl8723be. It didn't use to work but I updated the kernel to 3.18 and reinstalled the driver and that seemed to ...
15
votes
2answers
8k views

Is an Internet connectivity indicator applet available for the Unity panel?

Because my internet connection is very unstable at the moment, I'd like to use a small indicator applet for the Unity panel. Since I'm connected through a WLAN/Wifi Router, I can see in the ...
1
vote
2answers
25k views

Unable to download packages from Ubuntu Software Center - “Check Your Internet Connection”

Whenever I try to install any package, I get the error "Unable to Download Packages", "Check your Internet connection". But the strange part is that I can use synaptic to download and install the same ...
11
votes
4answers
14k views

Problems Connecting MSN with empathy

I don't know if I am the only one with this bug, but I can't use my MSN account with a freshly installed Ubuntu 11.10 with Empathy. It used to work with my Arch Linux, but now with Ubuntu, it ...
6
votes
7answers
5k views

What are common causes for greatly decreased internet speeds?

Two days ago I set my computer up to dual-boot with Windows 7 and Ubuntu 11.04. On windows 7, my download speed averages around 500kb/s, regardless of time of day. On Ubuntu, downloading simple ...
1
vote
1answer
3k views

Ubuntu 14.04 mounts a 3G modem as USB storage!

I have bought an Alcatel x602D modem for 3G Internet connections but Ubuntu doesn't recognize it as a modem but like USB storage How should I proceed?
6
votes
2answers
23k views

Ubuntu 14.04 Network Problem

I have an issue with my Ubuntu 14.04. I am able to connect to wireless networks without any problems, but when I am in my Dorm Room, I cannot connect to my wired Internet connection. It works fine ...
1
vote
1answer
1k views

Mobile broadband slow to be detected

-- UPDATE 1: relevant syslog lines. -- UPDATE 2: a step further. I was able to solve the GSM modem enable failed: (32) SIM PIN required loop specifying the PIN in Network manager > Edit ...
1
vote
1answer
3k views

Internet connection not working although it says it is connected

I have a Toshiba z830 with ubuntu 12.04. I could use without problems the DSL connection (I have no router, only a modem) at home until a couple of days ago: It stopped to work when while connected ...
0
votes
1answer
2k views

Wireless not working on Lenovo B-575

Help, because without internet, Ubuntu is useless. I can't enable wireless. My physical switch is on, it's working in windows, but I just can't enable wireless. I updated my drivers, and when I goto ...
7
votes
4answers
14k views

Strange connections by gvfsd-http --spawner

For a little while now, a strange connection has been showing up on my netstat made by the command: /usr/lib/gvfs/gvfsd-http --spawner :1.1 /org/gtk/gvfs/exec_spaw/2 By the time I notice it, the ...
7
votes
2answers
8k views

What should my MAC address be? (now shows 00:00:00:00:00:00)

I have three computers all wired into my router. The box I'm posting this from is running Ubuntu 11.10, and another machine is running Xubuntu 11.10 Both connected automatically when the ethernet ...
5
votes
4answers
9k views

'Activation of wireless network connection failed' error with a BSNL BroadBand modem# DNA-A211-I

I'm getting the message 'Network Connection Failed' frequently when I connect to wifi using 12.04. I was using the same connection without any problems, in Ubuntu 10.04 and Windows Vista. What might ...
4
votes
4answers
8k views

In Wired Connection settings save option is getting grayed out

Each time I switch to manual configuration, of wired connection in Ubuntu 12.10, the save button gets grayed out. As soon as I start setting it in Manually, it gets grayed out.Please help ! One ...
2
votes
2answers
6k views

Update Manager reports a “404 - Failed to fetch” for a deb file

Update Manager is reporting this error: Failed to fetch us.archive.ubuntu.com/ubuntu/pool/main/s/software-center/software-center_5.2.2_all.deb 404 Not Found I checked and my Internet connection is ...
4
votes
2answers
2k views

Cannot connect to eduroam from ubuntu

I am trying to connect to eduroam from ubuntu, asks me for certificated. I asked my college tech support and the answer I got was "I don't know nothing about linux ubuntu, all machine are windows or ...
1
vote
0answers
51 views

5.0 GHz wifi not connecting on new Ubuntu

I recently got a new computer running Ubuntu(I previously owned a mac), and I've been having problems connecting to the right wifi. My computer has no problem connecting to the 2.4 GHz, but when I ...
1
vote
2answers
445 views

Why my roommates' connection to the Internet is lost, when I'm connected to our router on Ubuntu?

We have 4 computers in our flat. When I'm starting to use Ubuntu and when I'm connected to our network, at least one of them has connection problems, that is, their connection status says that ...
1
vote
2answers
6k views

My Dell Inspiron 1501 wont connect to any network (wireless or wired)

I just recently installed Ubuntu 12.04, replacing windows vista on my Inspiron and it wont connect to the internet by any means. It won't detect any wireless networks and when I try the ethernet cord, ...
1
vote
2answers
11k views

How to install Network-Manager after uninstalling it

I hope this has not been covered elsewhere already. It is rather specific an issue, and related to a computer-manufacturer, but I need help for something Ubuntu-related that should be no problem for ...
0
votes
1answer
373 views

Bluetooth connection to HC-05 paired but not connected

I have an Arduino Uno connected to an HC-05 Bluetooth sender/receiver chip. I am trying to create a Bluetooth connection between my Acer laptop running under Ubuntu 14.04 LTS and the HC-05 chip. ...
0
votes
4answers
9k views

Update Manager Not working Fail to Download Repository Information

When I try to update, I get this error: Failed to Download your repository information Check your internet connection W:GPG error: http ://ppa.launchpad.net oneiric Release: The following ...
2
votes
1answer
11k views

Nmap scanning entire network?

Okay so I'm not really sure if this is even possible, but I need to know if there is a way to scan an entire network using nmap instead of a specific IP. Basically what I want to do is scan my ...
12
votes
4answers
688 views
+50

16.04 LTS wifi connection issues

I discovered several issues with wifi connection after installing 16.04 LTS. First, wifi doesn't reconnect normally after sleep or hibernation. Sometimes the network icon turns into a "up and down ...
4
votes
2answers
3k views

Can I connect my Ubuntu laptop to my HDTV wirelessly?

There are some devices that allow to connect laptops to High Definition TVs. One good example is Intel WiDi device. The problem is that most of them do not support linux/ubuntu. It would be nice to ...
12
votes
3answers
32k views

What does “ping: sendmsg: No buffer space available” mean?

I had an intermittent issue (which resolves itself spontaneously, after using a different connection for a while) that caused Internet requests to fail, with one particular wireless network. After ...
6
votes
2answers
3k views

Unable to connect to wired DHCP connection via my PC?

Hi As I upgrade my pc to ubuntu 11.10 I can't connect to the wired connection ! It doesn't even find my Device MAC address !!What can I do ? ifconfig -a eth0 Link encap:Ethernet HWaddr ...
2
votes
1answer
2k views

Unstable WiFi connection Ubuntu 14.04 - Lenovo G40-70 rtl8723be

This is annoying, my internet connection drops after a few minutes and I have to restart my Lenovo G40-70 because restarting the network manager doesn't work.I also tried the solutions from related ...
2
votes
4answers
15k views

Wireless connection keeps dropping with an Intel 3945ABG card

After updating to 11.10 from 11.04, my wireless connection keeps dropping off from time to time. Now, I already experience this problem when I was using 10.04 (the workaround back then was to ...
6
votes
1answer
617 views

Why does Network-Manager close when it cannot bind to any connection?

When Network-Manager is not able to bind my Ubuntu to any connection, after a while it closes. The icon in the notification area (or indicator area) disappears, and it does not run any more. For ...
3
votes
6answers
3k views

mobile broadband quick connect..how to?

I have a Reliance broadband + mobile broadband connection. It connects fine, but the only problem is it takes more than 2 -3 mins to get the connection started. If I plug in the USB datacard, the ...
2
votes
1answer
5k views

Wireless LAN not working on Lenovo Ideapad S205

I can't get the Wireless connection on my Ideapad S205 to work. I'm using Ubuntu 12.04. The network manager indicates that Wireless was disabled by hardware switch, which isn't true. I checked out ...
1
vote
1answer
5k views

ubuntu 14.04 not detecting SamsungY Android via usb cable

I had this same problem when previously using ubuntu 13.10, among other issues with my Windows dual boot. So I wiped the hard drive, re-installed ubuntu stand alone, and I still get the same dang ...
1
vote
1answer
3k views

Is it possible to use Windows Internet Connection Inside Virtual Box Installaion

Suppose I install Ubuntu on a Virtual Box, will I be able to use my Windows Internet connection, which is connected through a wireless device that Ubuntu is unable to detect?
1
vote
3answers
8k views

ssh connection “permission denied” message

When I execute the command ssh localhost (in Ubuntu 10.10), it will display the error message "permission denied(public key)." What may be the problem? Is there any problem in sshd_config file in ...
0
votes
1answer
969 views

waiting for network configuration network manager

I recently updated ubuntu to 12.04 and i have 2 problems: 1.) 'waiting for network configuration' shows each time when starting computer 2.) I always have to type in terminal 'sudo ...
9
votes
5answers
14k views

Why is Steam not able to connect Steam-Network?

This is the output when I try to start steam. It closes with the Message "Keine Verbindung zum Steam-Netzwerk möglich..." (No connection to Steam-Network...) Removing appcache didn't help so far. ...
7
votes
2answers
7k views

How do I connect to a VPN in GNOME-Shell?

I used to be able to choose "connect to vpn" from the network-indicator in Ubuntu but since I've upgraded to Ubuntu 11.10 I'm only using GNOME-Shell and I can't find anyway to connect to a VPN from ...
4
votes
1answer
2k views

Why do Ubuntu Servers connect to likho.canonical.com:80?

We have some Ubuntu 12.0.3 servers in our network and I can see several denies per day on our physical firewall. The Ubuntu servers are attempting to connect to 91.189.91.15 (likho.canonical.com) ...
3
votes
2answers
3k views

Connecting to Internet Through Another Computers Connection

I have an old laptop running Ubuntu 10.10 (server edition) that I want to connect to the Internet, but it's Wireless card isn't working properly, so on the recommendation by a friend, I tried to ...
2
votes
2answers
601 views

How to get connection to both wifi as well as LAN in ubuntu 14.04 LTS?

On my Ubuntu 14.04 LTS laptop, I have a LAN connection with a static IP address as well as a WiFi connection to the internet using DHCP. LAN connection goes to a switch and WiFi connection from a WiFi ...
2
votes
2answers
768 views

Connection drops after about 5 seconds and is real slow with a Centrino 1030 wireless card

I have a Dell XPS 15 with dual boot windows 7 ultimate and Ubuntu 11.10 and the wireless connection is really bad on Ubuntu, I have 2-5mbps in Ubuntu and keep losing the connection for 5sec, but in ...
2
votes
1answer
6k views

How do I troubleshoot a “connection failed” error when using `apt-get install`?

I need to install and run some 32-bit software on my 64-bit Ubuntu 11.04 machine, so it was suggested I run sudo apt-get install ia32-libs. I got the following: $ sudo apt-get install ia32-libs ...
1
vote
1answer
96 views

Unable to connect to wifi from Ubuntu 14.04! Realtek Problem!

I changed from Windows XP to Ubuntu 14.04! My netbook is 7 years old and i can't connect to WiFi! It's first time i use Ubuntu so please be exact, if you want to help me! I did this lspci and the ...
1
vote
2answers
1k views

Lubuntu / Ubuntu - Unable to connect to wifi network

I've been recently looking for information to fix the wifi connection on my Lubuntu machine. I got a fresh install of Lubuntu 15.04 on my PC with a TP-LINK 8200ND connected to it. Lubuntu shows the ...
1
vote
1answer
1k views

How to setup and connect Teletalk 3g modem in ubuntu 14.04?

I am very fond of Linux and recently installed Ubuntu 14.04. I am having issues trying to connect my Teletalk 3g modem in Ubuntu 14.04 for mobile broadband. If anyone could provide step by step ...
1
vote
0answers
202 views

no internet connection, but have signal in wifi

I cannot access yahoo.com, google etc in my browser, but I have signal in my WiFi, how can I access the internet again? Please can you tell me how to configure and solve my problem, Thanks
1
vote
2answers
2k views

Ubuntu 12.10 Modem Connected but no internet

I was previously running ubuntu 12.04 and upgraded to ubuntu 12.10. Previously on 12.04 when I removed my wired ethernet connection and plugged in my 3G modem I was immediately able to browse the ...
1
vote
2answers
754 views

Why does Ubuntu really slow down the rest of my home network?

I have a Ubuntu desktop and a Windows 7 desktop. The Windows 7 machine is connected via wireless adapter and the Ubuntu desktop is connected via Ethernet. The wireless adapter is capable of 300Mbps ...
1
vote
3answers
429 views

How do I prevent Ubuntu One indicator from connecting automatically after login?

I use Ubuntu One together with the indicator for the panel on two differnt laptops (installed the same way). On one laptop Ubuntu One connection is started automatically after login where on the other ...