General :: Gnome - "Network Unreachable" Using NetworkManager?

Feb 14, 2011

I just moved my Linux/Windows dual-booting laptop from a desk with an Ethernet jack to a desk that is within the WiFi range of our 2WIRE integrated modem/WiFi/ethernet router. I use GNOME with NetworkManager, and though NetworkManager reports that everything is fine with the connection, I am unable to access anything outside the local network, though I can access the modem/router and the other computers perfectly. However, when I either plug it into an Ethernet cable or boot into Windows, it works just fine.

ifconfig and iwconfig both report that the connection works, the router's firewall is set to allow all outbound traffic, and the laptop's firewall is also set to allow all inbound traffic. How is this even possible, and more importantly, how could I get it fixed?

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General :: Unable To Browse Internet On Virtualbox - Network Unreachable

Aug 16, 2009

I installed centos 5.3 x86 at vrtualbox on windows 7 x64 as host. The ping answers "network is unreachable", ifconfig has an ip "192,168,51,100". At control panel, I seleted intel PRO/1000MT Desktop Host only. Is this centos's problem?

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OpenSUSE Network :: Unable To Ping The Default Gateway When Using Custom Settings - Unreachable Network

Jul 17, 2011

I installed openSUSE on one of my work system. The network port wasn't working when I was installing, but works fine now (checked in Windows). But for some reason, I am not able to configure the network. I used both Dynamic and Static IPs (both work fine in Windows) but still no go. I am using Yast Control Center for this purpose. I can't even ping the default gateway when I am using custom settings. When I use dynamic settings, it says Unreachable Network.

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Red Hat :: Static Network Configuration On RHEL - Network Is Unreachable

Apr 27, 2010

setup my static network connection Here are my details :

IP :
Subnet :
Gateway :
Primary DNS :


but after this setup when i restart my network #service network restart while bringing up the eth0 the following message is displayed before [OK] - RTNETLINK answers : Invalid Argument now it seems either this setup is wrong or not sufficient to set up the connection, whenever i try to ping it showing connect : Network is Unreachable

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General :: NetworkManager Can't Get Wireless Network To Work?

Aug 23, 2010

I just loaded Suse 11.3 on my laptop. I can't get my wireless network to work. I tried via Yast and then switched back to Network Manager but nothing works.NM says that it is running, however I have no way to access it. No icon and I don't know where it is located or how to add to desktop panel.

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OpenSUSE Network :: Unreachable, Even With The IP Forward Enable?

Mar 25, 2010

I have one server with 4 network interfaces:

eth0: - local lan A
eth1: - internet link - default route
eth2: - local lan B eth3: - local lan C
Lan A - Default routing to eth0
Lan B - Default routing to eth2
Lan c - Default routing to another server but the workstations has static routing to this server too.

Everything is working fine on Opensuse 11.1 until I upgrade this sever to Opensuse 11.2 ( Reinstall, not update at all ). After upgrade to 11.2 the routing across local lan interfaces simply not work, if you try to ping lan-to-lan you got the message: Network unreachable, even with the IP Forward enable, but the default route is working fine trough the SNAT.

I've come back to Opensuse 11.1 and everything become normal, does anyone have an problem like this? Maybe a bug? PS: I do not try to disable the AppArmor, next weekend I will try Opensuse 11.2 without the AppArmor and post here anyway.

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Networking :: External Nic Unreachable From Local Network

Jan 11, 2010

I've got router with: eth2 - local network (, ppp0 - uplink (x.y.z.a)

my firewall:


# Generated by iptables-save v1.4.5 on Mon Jan 11 12:22:25 2010
:PREROUTING ACCEPT [1038480:666298388]


somehow iptables -t nat -A PREROUTING -i eth2 -d x.y.z.a -j DNAT --to-destination helps, but imho there should be some other solution. kernel is, architecture is x86_64.

P.S. i've also tried iptables -A POSTROUTING ! -d x.y.z.a -s -j MASQUERADE that didn't help either.

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Networking :: Ping Between Two Servers - Network Unreachable

Mar 7, 2011

I have two linux servers, I tried to ping from one linux box to another and vice versa but error message is "connect: Network is unreachable" Where as If I tried from windows machine I am getting the reply from both the servers.
C:Documents and Settings>ping bnkprod

Pinging [] with 32 bytes of data:
Reply from bytes=32 time=16ms TTL=64
Reply from bytes=32 time<1ms TTL=64
Reply from bytes=32 time<1ms TTL=64
Reply from bytes=32 time<1ms TTL=64

Ping statistics for
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 16ms, Average = 4ms

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Slackware :: Network Unreachable After Bios Flash / Get That?

Aug 17, 2010

Flashed bios lastnight on 13.0 desktop.
all winblow$ are fine.
lspci shows ehthernet card
did 'netconfig' and
'route -n' shows default settings as if /etc/rc.d/rc.inetd1.conf were never set.
oh yes, i manually edited this too. mv'd and netconfig'd.

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Ubuntu Networking :: Exact Meaning Of 'network Is Unreachable'?

Dec 27, 2010

I've been having a lot of trouble with getting wireless networking devices to work. I guess I have a lot of company, since mfrs don't seem to be very interested in supporting Linux.It seems that one common symptom is that, when I try to "Ping" using the Terminal, I get "network is unreachable".Does this mean anything specific, or is it a general output whenever the network is not carrying on two way communications? Does it mean that the wireless interface is down? Does it mean that the wireless hardware is not transmitting? Not receiving?

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Ubuntu Networking :: Belkin F7d1101 V1 Network Is Unreachable?

Jan 3, 2011

My ubuntu installation was running fine with the Belkin F7D1101 v1 after using this install method:[URL]..But, after allowing ubuntu to autoupdate many programs (don't remember which ones), the device stopped working. I checked all of the commands in the link above. They are all still functioning. dmesg throws no errors, but it terminates with

<code>ADDRCONF (NETDEV_UP): wlan0: link is not ready</code> Are there any network files which may have been overridden from autoupdate? iwconfig wlan0 shows "Access Point: Not-Associated" What output can I show you to help me find the problem?

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Networking :: Route Add - Eth0 SIOCADDRT: Network Is Unreachable

Jan 18, 2010

I want to add this route but I am getting this error message. What is the reason of this problem? I cant add this route? how can i add?

Code: [root@linux/]# route add -net netmask gw eth0 SIOCADDRT: Network is unreachable

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Debian :: No Internet Access \ Ping Always Respond With Network Is Unreachable?

Jan 29, 2011

I'm using debian lenny.When I boot with kernel 2.6.36, ping always respond with Network is Unreachable. But when I boot with kernel 2.6.26 it works. I can't even ping the dafault router of 2.6.26 kernel when I am at 2.6.36. Also, system/administration/network does not show any connections while it shows something at the other kernel.

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Ubuntu Networking :: Directly Connected Network Printer Unreachable.

Oct 3, 2010

I have a network printer directly connected via ethernet cable to an Ubuntu netbook, but pinging the printer fails, giving "Host Unreachable". The network light on the ethernet socket is lit green, and there is nothing else cable-connected to the network - just a simple cable connection between the netbook ethernet socket and the Network printer (a HP Laserjet 4200n). Ping works fine if I plug the cable into a different machine (a Win XP box) and ping from there, so it's not a cable or IP address problem.

This sounds simple enough and should work, but I'm stumped. Clues, anyone?

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Ubuntu Networking :: Massive Latency/unreachable On Wired Network?

Dec 15, 2010

I'm experiencing massive latency/unreachable problems on my Linux machine. It's true for all network connections, here's an example of me trying to ping my router:

PING ( 56(84) bytes of data.
64 bytes from icmp_req=1 ttl=64 time=15115 ms
64 bytes from icmp_req=2 ttl=64 time=14107 ms
64 bytes from icmp_req=3 ttl=64 time=13107 ms
64 bytes from icmp_req=4 ttl=64 time=12107 ms
64 bytes from icmp_req=5 ttl=64 time=11108 ms


I've tried now with both the maverick default kernel and 2.6.37-rc5 kernel (both 64 bit), same result. If I take the card up and down (ifup, ifdown) performance is restored for a little while, then it's back. I've tried changing cable, network card and router port but no luck.

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Ubuntu Servers :: DNS / IPV6 Address - Error Network Unreachable

May 25, 2011

I use DNS on my server as a chasing DNS so its not fully configured. I seem to be having trouble with IPV6 addresses. I'm guessing this is linked to the 6to4 tunnel I have set up to my windows box, but I'm not really sure.

May 21 18:00:16 hyrule named[1148]: error (network unreachable) resolving 'D.ROOT-SERVERS.NET/AAAA/IN': 2001:dc3::35#53
May 21 18:00:16 hyrule named[1148]: error (network unreachable) resolving 'B.ROOT-SERVERS.NET/AAAA/IN': 2001:500:1::803f:235#53
May 21 18:00:17 hyrule named[1148]: error (network unreachable) resolving '': 2001:503:a83e::2:30#53 .....

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Software :: Couldn't Establish Connection To Proxy - Network Is Unreachable

Jan 16, 2011

When ever i try to access through ssh i get the following error message:

Couldn't establish connection to proxy: Network is unreachable ssh_exchange_identification: Connection closed by remote host

I have a account at is on.

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Ubuntu Networking :: Internal Error Network Is Unreachable?

Aug 7, 2011

I am plagued by the following error when attempting port forwarded connections to my minecraft server. Port forwarding is good and test ok on router based firewall. No iptables entries. Natty N, all updates current.

[INFO] Disconnecting CascadianNW [/]: Failed to verify username! [internal error Network is unreachable] Network is unreachable

Some discussion indicate jvm network connection issues related to ipv6, but they are old posts.

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Debian :: NetworkManager Applet Shows No Network While Connected - Wired Network Device Not Managed

Oct 30, 2010

I'm running Squeeze and I'm looking 3 days now for a solution in some weird problem. The NetworkManager Applet shows that there isn't connection although I am connected. The icon has this small "x" and when mouseover it says "No network conncection". Moreover when left clicking it, it says

"Wired Network Device not managed"

While I was looking for the solution a came across this post by an Ubuntu developer who says:network-manager-applet displays the connectivity state of network-manager's managed interfaces not every interface. So the title "network manager says disconnected but is connected and working" is actually misleading. The interface is connected and working but not from network-manager's point of view since it is not managing the interface. Additionally, in Lucid now network-manager applet displays nothing now for non-managed interfaces so is less misleading. You can check to see whether or not an interface is managed by network-manager by using the command line too nm-tool. You'll see "State: unmanaged" for unmanaged interfaces.

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OpenSUSE Network :: Make Network Connections Persistent When Using NetworkManager ?

Mar 31, 2011

I had a google of this but can't find anything useful. I use networkmanager to configure my wireless card. Currently this only works when I'm logged in to KDE. If I log out the system loses the network connection. Is there a way to make it persistent using NetworkManager?

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OpenSUSE Network :: NetworkManager And DNS - Connecting To Other Hosts When Using Another Wireless Network

Aug 21, 2011

since a few weeks I have a problem connecting to other hosts when I'm using another wireless network, which has a different DNS IP than I have in my network. I have to change /etc/resolv.conf to change the nameserver. Can NetworkManager control the nameserver? If yes, how?

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Fedora Networking :: NetworkManager Does Not Come Up In GNOME

Nov 25, 2009

I have no problems seeing the networks available and connecting to a network in KDE. But there is no network manager in GNOME. I might have messed up with the settings earlier. What I can do though is run knetwork manager every time I start up (or add it to start up programs). But that opens up the KDE wallet which would rather avoid.I am thinking I need to install something related to NetowrkManager.

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Fedora Networking :: Where To Get Networkmanager Gnome Applet

Feb 5, 2009

after fiddling around with compiz-fusion and KDE, my network suddenly disappeared. I looked in the package manager and apparently I don't have the gnome applet for networkmanager...but everything else I seem to have (the git version not svc or w/e) Anyone know if installing the applet will let me choose my wireless network and connect to it? Right now I think so, but what I have to do is boot into windows, find the package on the web and download it, then boot into fedora and install it

where I can find the fedora 10 networkmanager-gnome package (git version for x86_64)? I looked around and found the svc version and a git version for i386, but my OS is x86_64 and I couldn't find any git versions of it for 64-bit fedora's. btw, I have no idea what git and svc mean, but when I tried to install the svc version, it told me I had to install svc versions for all the other networkmanager packages...

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OpenSUSE :: Gnome NetworkManager Icon Gone From System Tray?

May 19, 2011

OpenSuSE 11.4 --- #1 SMP PREEMPT 2011-04-25 21:48:33 +0200 i686 i686 i386 GNU/Linux So recently in the last couple of days my NetworkManager Icon has disappeared from the "System Tray" on the Taskbar, even after a reboot. I have tried doing: Alt+F2 then typing "nm-applet" and nothing happens. Also tried in the terminal typing "nm-applet" and I get:


# nm-applet

An instance of nm-applet is already running. I am connected to the internet so I know it is working but how do I get the icon back? I would like to be able to switch between connection types (i.e. wlan0 or eth0 etc...) but can't do it without it (well easily anyway, probably could switch through the terminal but I would rather not). Also, on another note I remember earlier in the week reading a post that someone had the same problem, and they told him to Alt-F2 and type "nm-applet", which did work for me once but now it is not.

***And I do remember accidentally deleting something involving NetworkManager from the "Startup Applications" app. Can't remember exactly what it said but I do remember it had the word "-disable" at the end of the command. --> If anyone has NetworkManager icon in their system tray could you please look at your "Startup Applications" and tell me what the one for NetworkManager's command says?

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Ubuntu :: Gnome NetworkManager 0.8 Huawei E160 HSDPA / UMTS - Does Not Connect

May 24, 2010

Some month ago i bought a UMTS / HSDPA Stick "HUAWEI Mobile Connect E160". I worried about getting it running with Ubuntu, but it was freaking easy to get it running. Even less complicated than installing the same device with windows.

It worked some month without any problem and then suddenly, didnt work any more. If i plug the device to my laptop (lenovo x61) unter linux now, i still can click to start the mobile broadband, it trys to connect some time, but shows "disonnected" at the end (dont know the exact message in englisch, because i use german language prompts). The same device still works fine with same hardware with windows vista at all 3 usb ports. I deleted the mobile broadband settings couples of times and made a new one, without any effect to the behavior.

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OpenSUSE Network :: Don't Have Networkmanager

Mar 7, 2010

i dont have networkmanager. what can i do?

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Fedora Networking :: 10 Terminal "error: The Network Appears To Be Unreachable"

Nov 12, 2009

I recently installed Fedora 10 and I'm trying to install a driver for my HP Deskjet F4200 Series All in One printer. I downloaded the proper hplip file and when i go to install it in the terminal it gets to the very end where it is trying to install the missing required dependencies. When it checks for the network connection it comes back saying "error: The network appears to be unreachable. Installation cannot complete without access to error: distribution repositories. Please check the network and try again."I am connected to the internet through hardwire cable (also tried it through wifi) and have no trouble accessing internet through mozilla or downloading packages elsewhere. Any ideas on why my terminal won't recognize my internet connection??

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Fedora Networking :: Error For Ping Was "network Is Unreachable"

Mar 12, 2009

I installed Fedora 10 and are using KDE. I struggled to get my network up and running - error for ping was "network is unreachable". I eventually got it right by modifying my ifcfg-eth0 file manually.

Now I'm trying to install with yum, but yum fails to connect, probably because of the proxy. I've set the proxy in <System Settings><Network Settings><Proxy> but it doesn't allow me to also add the authorization - greyed out. I've chosen the manual configuration of proxy.

1. How can I enable or allow the adding of authorization in the proxy dialogs or

2. Where is the proxy file which I can modify from command line (and how)?

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Networking :: "The Network Is Unreachable" - Floppy Disk Distro

May 28, 2011

I am building a v2.6 kernel floppy disk distro to run on a 1992 computer. FWIW The specs on the computer are

* 66 MHZ processor
* 12 MB ram
* 400 MB HD
* EGA monochrome video card

It runs Linux quite nice actually. I want to get it online with a null modem cable and use the other Linux box as a gateway to the internet. I have networking, TCP and slip support in the kernel. I do now know if I have all the needed network configuration files. I am able to ping If I try to ping the other computer, I get a "network is unreachable" error. Tell me any commands to run on either box and I will attempt to do so. Remember the old computer is running a stripped down toolset since its only two floppies worth.

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Ubuntu :: Ping From First Computer To Second The Output Is "Network Is Unreachable"

Feb 5, 2010

I all, I 've two computer with Ubuntu 9.10 (desktop version)connected by cross over cable.
I try to connect this computers in LAN with the following command:

ifconfig eth0 [address] netmask [netmask] up

When I ping from first computer to second the output is "Network is unreachable"

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