Ubuntu Networking :: Wireless Shows Connected, But No Internet/Can't Ping Router?
Sep 14, 2010
So I installed 10.4 on a new Toshiba Satellite L645DWhen I connect to my wireless at home, the Network Manager shows that I am connected but I can't reach any websites via ping or firefox. I also can't ping my router. I also don't have wired access working at all.iwconfig shows connected to correct ESSIDI can ping localhostcan't ping google:
Code:
ping: unknown host www.google.com
can't ping my router (192.168.2.1):
[code]....
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Mar 1, 2011
This morning my Ubuntu 10.10 Meerkat desktop suddenly lost internet connection, but stayed connected to my netgear router. After the usual "tried turning it off and on again" methods didn't work, I booted into my Win Vista partition to find that connected no problem. I have another Ubuntu netbook and a Windows 7 laptop in the house as well as an Android. These all connect fine. It appears to be just the desktop Ubuntu.
I can ping my router 192.168.0.1 and log into it's UI via browser. I can also ssh to the box. My router does not do any filtering or blocking. I've tried disabling the firewall and changing the nameservers in /etc/network/interfaces and dhclient.conf as well as the network manager. The network card is a Belkin 54g but I can't remember the exact model no. it was bought years ago.
Code:
$ping www.google.com
PING www.l.google.com (74.125.230.115) 56(84) bytes of data.
^C
--- www.l.google.com ping statistics ---
30 packets transmitted, 0 received, 100% packet loss, time 29004ms
Code:
$traceroute 74.125.45.100
traceroute to 74.125.45.100 (74.125.45.100), 30 hops max, 60 byte packets
1 * * *
...continues to...
30 * * *
When I do a restart of the networking service it spits out the error:
Code:
Ignoring unknown interface wlan0=wlan0
However, as I said the wireless itself works.
/etc/network/interfaces:
Code:
auto lo
iface lo inet loopback
iwconfig:
Code:
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bg ESSID:"haters gonna hate" .....
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Nov 22, 2010
new installation of fedora 14 intel pro/wireless 29251abgeverything ppears to be workingbut ping doesn't workand firefox doesn't workping resolves names but doesn't ping??
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Aug 2, 2011
I think something weird is going on. On a fresh installation of 11.04, I seem to be connected to my router just fine, but I can't reach the internet or anywhere else on my network. Anybody see my problem from what I've posted? The computer is only connected via wireless (so I don't know why eth0 would be connected as well). I can't think of what I'm missing...My system seems to be connected to my router on two interfaces. "ip addr" gives:
Code:
1: lo <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
[code]....
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Feb 16, 2011
I'm running into a curious networking hiccup with my router setup. I have a D-Link DIR-628 wireless router connected to our modem, and a wire running from that to a Linksys WRT-54G (v1.1) in our basement. This setup worked great for a few days, but then suddenly the Linksys stopped routing us to the internet. I can connect to the router page on the Linksys and using the diagnostic tools I can ping the web from there, but none of the computers connected to it can. Everything is fine when connected to the D-Link.
After fiddling around with just about every setting on the Linksys I finally gave up and tried resetting it to factory defaults--and it worked! Everyone could access the internet again. But then, every day or two it locks up again and I have to reset factory defaults again.
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Jun 9, 2010
I moved my server and network equipment, and now the wireless works but I cannot get my server online. I host a website, so this is kind of urgent.
I have a wireless router and can access the internet fine on my laptop. My server is wired & connected to the router. It sets up the networking properly.. ifconfig has an ip address, the default gateway is present. But I cannot ping google, or even the router. It says destination host unreachable.
So I go back to the laptop to check the router settings.. sometimes it likes to assign the server the wrong internal ip. But, I can't access the router settings either! The page (192.168.1.1) times out. Same with trying to ping the router. How can the laptop be online if it can't reach the router?
Oddly, ifconfig on my laptop reports an ip address starting with 99.233. It's always given me an internal address starting with 192.168. What's going on here? Is the router not allocating an internal ip? I use wicd to connect, if it's relevant.
We have a windows laptop that can only get a "local connection". Now it does sound like the router is forwarding directly to my laptop, instead of allocating internal ips.
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Oct 5, 2010
I've got Ubuntu 10.04 on my laptop and have recently (within the last 72 hours) started having trouble connecting to other machines on my local network. I'm unable to ping both my router and a server set up in the room beside me.
1. I have tried pinging my server and router from other machines and it works fine. Accessing the server via HTTP works from all machines except for my laptop.
2. I am, however, connected to my router via wireless and can access the internet. Also, if I connect via an ethernet cable I am able to ping both my server and router, although I'd love to be able to go wireless.
3. I assume something's wrong with my wireless setup, but I really can't figure out what. Possibly related note: my wireless has been disconnecting unpredictably on my home network (WPA).
Let me know if you'd like to see any command output and I'll get it to you asap! I've got a Dell Studio 1558 w/ the dreaded Broadcom BCM4312 wireless controller.
Code:
user@blue-skies:~$ cat /etc/network/interfaces
auto lo
iface lo inet loopback
[Code]......
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Feb 21, 2010
just installed Ubuntu Netbook remix on my acer aspire one, and come across a problem Ive never faced before. Im able to Connect to my router (and access it through the internal ip address) but as soon as i try access anything outside of my network there is nothing!
This i found odd as first i thought it might have just been my Routers problem, but seeing as all my other computers were connected to it with no problems (wired and wireless) I quickly traced the problem back to the laptop.
After this i decided to see if after a simple update would fix the problem. so i connected it up through the Ethernet port once again it connects to the router but no internet! I have tried everything in my knowledge, but with no success!
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Sep 26, 2010
I am connected to my wireless network but can't connect to the internet. I have searched the ubuntu forums for solutions but none seem to work for me. I can post terminal outputs if required (I know that much).
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Sep 1, 2011
I'm running a Natty machine wired to a TP-Link router (TL-WR841N) with additional Ubuntu and Windows machine on WiFi. Recently I've had some problems with connectivity on the Natty machine. Connectivity is fine as far as the router, but not beyond it. This applies to all browsers, Software Center, Aptitude and anything else you can think of. Now, normally at this point I would call my ISP, but the thing is, all other machines have connectivity. I've checked the cables twice and anyway, if it were them, I wouldn't be able to ping the router. Router has ping functionality to outside and it's working, have tried ubuntu.com and google.com. Also, connectivity between the wired and wireless machines is fine, pings are flying across the network beautifully.
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Feb 1, 2011
I have a edimax USB wireless and as soon as I plugged it in it worked i.e., it is able to connect to a wireless.
[Code]....
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Jun 7, 2010
when I was still at my university room where the connection would work after a few reboots. After moving back home the connection worked on and off for a day before not working at all. NetworkManager is telling me that I am connected and have an ip address, etc, but nothing is able to get an internet connection. I am able to ping myself but am not able to ping my router. Everything works fine on M$ and other PC's on the network, it's just my ubuntu 10.04 that is playing up.
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Jan 6, 2010
I'm new to Ubuntu and i set up my wireless myself and I think I may have put in wrong settings. I looked through the forum and found these commands to put in the terminal from other posts. Could someone please see if they can fathom what I've done wrong. I have an wG111v2 netgear usb which works fine in windows but is very sluggish on Ubuntu. It worked for a while but since i have deleted and reinstalled my wireless numerous times I now can't get iternet at all. I have Ubuntu 9.10 on my machine which I duel boot with winXP.
ayte@kaytesRocket:~$ sudo dhclient wlan0
[sudo] password for kayte:
There is already a pid file /var/run/dhclient.pid with pid 1927
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.1.2
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
[Code]..
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Jan 31, 2010
I have recently installed Fedora 12 on my pc but I am not able to browse the internet although the network icon shows the computer is connected.
I tried the dig command and got the following message:global options +cmd; connection timed out; servers could not be reached;
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Mar 4, 2010
I am using centos box as a router. WAN side has a public ip and lan side also using a public ip. I configured dhcp server on the LAN side and it is working perfectly, pcs on the LAN side can able to access the internet.
Problem: Considering the fact that LAN IPs is using Public IP and it is presumed that from the internet it can be able to ping IPs inside the LAN but, alas, it couldn't.
No firewall has been config!
Question: What config should be done on the box so that IPs inside the LAN can be ping from the internet?
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Feb 4, 2010
Previously posted under "Wireless Connection Can't Even Ping Router".I've been using Ubuntu for two years. About a year ago I switched to Kubuntu because I prefer the KDE desktop. Two weeks ago I bought a new laptop: Dell Vostro v13. I installed Kubuntu 9.10 from the live CD and everything worked! Well, almost. I also set up a home wireless network with a new Belkin N+ router from WalMart. When I try to connect to my router, the Plasma Network Manager reports that I'm connected and the assigned IP address, but I'm not truly connected! I can't even ping my own router, all packets are lost.
This problem is intermittent, sometimes I connect fine. I dual-boot with Windoze7 and it connects without problems. Also, if I connect with Windoze, then re-boot into Kubuntu, it seems to "wake-up" the connection somehow and it works. I might also add that I connect without difficulty to other routers in my neighborhood, at work, in airports, etc.My old laptop was also running Kubuntu 9.10, and it connected to the Belkin router without problems, although it was a different wireless card and driver. I also tried Ubuntu 9.10 from the live CD and it also reported a connection, IP address, etc. I couldn't ping the router from that connection either!
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Aug 8, 2011
I have one major problem that is going to cause me to switch back to windows. My wireless network shows connected and works fine for a while but periodically stops working. It always says it is connected but sometimes stops working to where I have to disconnect and reconnect for it to start back up again.
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Jan 31, 2010
I've only been using linux for a few days so I don't know all the tricks. I'm pretty savy configuring windows networks however.My adapter is (according to windows) a: CNet PRO200WL PCI fast ethernet adapterLinux says it is a: 21x4x DEC-tulip compatible 10/100 EthernetI do seem to be getting an ip address from the DHCP router, but I cannout ping any other ips or connect to the internet.I've tried a bunch of different options, switching things back and forth, but it still doesn't work, and honestly i don't even know what some of the options mean.
ALSO, if this helps:
paladin:~ # ifconfig eth0
Eth0 Link encap:Ethernet HWaddr 00:08:A1:03:3C:99
[code]....
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Apr 27, 2010
I had previously been having loads of problems getting my wireless printer to work with Linux [http://ubuntuforums.org/showthread.php?t=1453697]. Everything is working fine now. However, something that confused me is that whenever I tried to ping the printer _before_ I got it working, it would fail with a _different_ IP address. That is, the command 'ping x.y.z.3' would fail with a message saying it was unable to contact 'x.y.z.2'
Now I am looking at my router - for something unrelated - and I've noticed that rogue IP address shows up in the list of connected devices. It has a MAC address but for the device name it lists "<unknown>". Should I be concerned about this? how to figure out what this device is?
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Nov 7, 2010
Im using a laptop with a wireless card inside it is a Realtek RTL8187B network adaptor. I go to wireless connections in the toolbar at the top of the screen and click on my internet modem and it says its connected. So I go to firefox and it brings up google. I try and do a search and it says something and at the bottom of the page it displays a button that says "Try Again". Im booting ubuntu from the cd drive so its not installed on my computer what should i be trying?
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Jan 11, 2011
I have an old GX 159 Dell Desktop I tried to install Ubuntu 10.10 on it and it worked like charm the problem is when I connect my Alfa 1 wireless adapter and connect to the network it won't let me connect to the internet. Well I have been succeeded to connect to the weather center, but I can't update or open the Internet even if I have been able to open Hotmail.com after 2 minutes it won't open anything after that
Note: I didn't install the driver for adapter and I don't know how to do it because I tried before and I failed adding I used it on more than one distro. By the way it works perfect on Windows?
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Nov 9, 2010
I upgraded to 10.10 the day it came out, and haven't had any problems with internet stuff. My wireless card works without any proprietary drivers. Last night, the computer stopped connecting to the internet. I am still connected to my wifi network, but I can't do anything online. I had assumed that my internet connection was just down in general, and tried resetting the computer, shutting down the computer and then turning it on again, and rebooting the modem, but then my Xbox connected, and my laptop running 10.04 connected, so I'm confused as to what is going in. Any ideas?
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Dec 27, 2010
I am running Ubuntu 10.10 on a Dell Dimension 4700 desktop computer. I just upgraded to 10.10 from the previous version after getting my D-Link wireless adapter back after loaning it out. My internet now won't stay connected. I can connect when I firstrn on the computer, with after 2-5 minutes it drops the connection and gives me the "Wireless Network Authentication Required" prompt. It won't connect again without unplugging the adapter and plugging it back in.I borrowed a Belkin wirelss adapter to try it, and it does the exact same thing. PLEASE can someone help me, I really need the internet up on the computer(Also, when I first got the adapter-- while running the old version of Ubuntu-- it would not recognize or connect at all and I spent 4 hours messing with drivers and settings to get it to work, which it did flawlessly. Until I upgraded.)
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Feb 22, 2011
I've had ubuntu installed for a bit now and I want to start using it as my main OS, but the wireless internet will not stay connected. It will connect at first and if I'm lucky it will stay connected for around 15 - 20 minutes. I have a toshiba laptop with an AtherosAR5007EG internal network card.
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Aug 26, 2011
I have installed ubuntu 10.04 and STA wireless driver. I am using a wimax modem, the wireless is connected (have IP addresses) but I do not have access to the internet.I also have installed a windows XP as a guest OS (ubuntu is the host) on vmware. By using a bridged network connection, I am able to access internet. So I guess the problem is related to the ubuntu wireless driver.
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Sep 3, 2011
I installed Fedora 15 today and after a few very long hours finally got the broadcom driver to work and my laptop is now connected to my router. Yay! But now when I try going to a website in firefox it says server not found. I can ping anything inside my network but when I try to ping outside the network, for example google, it says ping: unknown host google.com. So I thought it might be a DNS problem but the network settings point to the router for DNS so I'm not sure what else could be wrong. All of the other settings look correct.
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Jun 4, 2011
I'm running Lucid (10.04), dualboot vista, but I'm having some issues with my wireless USB dongle. Previously (in a different) location, the network wasn't showing in my wireless network tab, and that was never resolved. But now I'm in a new place, and what I'm finding is that my network is showing up in the networks tab, and I can select it, enter the PSK, and it starts to interrogate, but never seems to manage all the way through to getting internet.
Im not sure whether the machine is able to connect to the network, but not the wider internet, or what. The only indication I'm getting is that its connecting for a length of time, then gives up. I have managed to get the update tool pop up - so I'm not sure if thats an indicator of some internet connection or not (presumably it only generates the list of packages to update when it can connect to the net and see what updates are required...) I believe its also managed to get 1 or 2 ping packets through to the internet. I'm driving a belkin N-wireless USB adapter, N10117.
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Dec 11, 2010
I have Ubuntu running from my flash drive. My wireless connection shows good connection to my router and other routers I have tried; however, when I open Firefox or chrome there is no internet connection.
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Sep 7, 2011
I just installed a dualboot win7/F15 on my laptop (dell XPS 15) and everything seems to be working fine except that when I connect to my network it is connected and the network is accessible (I can visit my gateway/ router) but when I try to visit a website it simply never ends loading it.Internet is working on win7 so it isn't my network's fault.Now I found somewhere that updating could help but since I dont have internet I can't update
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Sep 17, 2009
if i'm connected to my wireless network it only gives me internet acces for a few minutes. The connection with my network stays but i have to close it back of and reconnect before i get back online.
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