Ubuntu Networking :: Wireless "connection Established" No Browse No Ping
Jul 7, 2011
Ubuntu 11.04, wireless adapter BCM4312.The connection works for a while, for a random length of time from a few minutes to a few hours, then stops working. The laptop says it's connected, and the router says it's connected, but the browser can't find any Web pages, it can't find the router, and there is no response to pings from the router or any other device on the local network or on the Internet. "Host unreachable." When I try to ping to the laptop from another one, it times out.If I shut down the computer and try again a few hours later, it works fine again for a while, then after a while it stops working again.
In case it's relevant, sometimes when I restart networking from the command line, it says "ignoring unknown interface eth1=eth1," even though ifconfig -a lists eth1 as up with an ip address. eth1 is the wireless adapter. Another laptop with Ubuntu 11.04 connects to the same router with no problems.Using a fixed IP address doesn't change anything.
there is an open wireless i can connect it -in ubuntu- but can not browse anything.we tried to connect via mobile it's working fine ,in addition via Windows XP it's fine ,but not in ubuntu why???!!
I have problem in making connection to my vpn server I can make connection from windows xp to that but can not open any website and I can not ping 172.16.10.1 when connection established.
These are my configuration files:
server config file:
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client configuration file:
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And this is my server syslog tailed file:
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And I added this routing to /etc/rc.d:
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And this is my iptable:
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And vpn connection is lost after establishing a lot.
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??
I am new to ubuntu, just installed it a few hours a go. I've managed to get it hooked up to my wireless connection but still the internet doesnt work. What I can do to get it working?
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!
I've been wondering about how I can change settings on the notifications that show on the screen when a wireless connection is established, when I get new mail, etc. They look a lot like growl notifications from OSX, but clicking on them doesn't show me anything. If someone could explain a little about what they are/do
recently I got new wireless card, att usb Quicksilver(based/produce by Option?), for att.Regular gnome network manager freezes the computer when I am plugging it it therefore I installed the one from wicd.net.Also, I am using HSOConnect (to connect by to G3 network), and sometimes I connect to regular wireless g connection through router.
Under both cases I can ping the website by IP and can access the website by ip (ex. google) but can not ping or browse by name.As a side note... I can use and access Skype fine under g3 network and normal wireless.I tried browsing and finding other solutions in past few days but ended up breaking everything and reinstalling to get back to the point I am at now.I am working on the road, so not being to broswse is rather crippling to me.... also I can access internet normally only from home from different computer now.
I was wondering, on a GNU/Linux system including but not limited to *ubuntu, how would I go about determining when the network connection is established on any interface, so I can run a shell script only once at that exact time?The idea that comes to mind is polling-and-sleeping, but I'd like to know if there is another, more robust way? Like an onconnectionestablished javascript event or something.
I bought my new Dell inspiron N1401 64bit laptop. It has windows 7 installed in it, I am begineer to linux. I have installed Ubuntu 11.04 64 bit version. I have a wired internet connection which works fine with my windows 7. When I switch to Ubuntu, when internet cable is plugged, the top right corner, network manager shows connection is established, but when I open firefox I cannot access internet. I tried searching on forums, but I could not make it work. If I type ifconfig command in terminal attached is the output I get, I dont know what is the problem. I want to use Ubuntu than Windows
I'm using FC10 on my box at work. It is behind an anthenticated proxy for internet connection. In Gnome, I configured the Network Proxy through the GUI, as my browsers too.
So I can browse internet pages, install packages thru Add/Remove Software GUI, but I cant do it in the command line, using yum install, for example. Then trying to figure it out, I saw that it cant reach the package mirrors. It isnt a DNS problem, I set the /etc/resolv.conf correctly, as the host command works correclty. I can ping the local pcs on the network too. Firewall is disabled. Below some simple tests:
[rtovo@davinci ~]$ ping mirrors.fedoraproject.org connect: Network is unreachable [rtovo@davinci ~]$ host mirrors.fedoraproject.org mirrors.fedoraproject.org is an alias for wildcard.fedoraproject.org.
Background: In attempting to move from XP to linux, I have a F14 live USB stick -- can boot Dell M6400, see the internal drive and USB sticks. Wired ethernet network is seen only if ethernet cable is plugged in before booting. Then, I can ping sites by name (yahoo.com, google.com) -- however, FireFox does not load any web-page over the internet -- it does not put up an error message either, it just keeps waiting (it is in on-line mode).Info on the system
uname -a Code: Linux localhost.localdomain 2.6.35.6-45.fc14.x86_64 #1 SMP Mon Oct 18 23:57:44 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux [code]...
I see something like internet connection is established. Ive established etho connection but I cant open any sites at all. I also have Windows on another hard disk and it works well. About a week ago I had Ubuntu 8.04 and it worked really fine. What�s wrong? Is there any remedy?
I have a small Dell PowerEdge 1650 server with Fedora 12 loaded. We can access the internet, (Google, our home page, Etc.) but can not ping any local or outside IP addressed. Our internal computers can ping each other but not the server. No, it is not the server firewall because we also disabled it and still the same results.
In my Fedora13 machine, while in mobile broadband, i can ping and skype outside, but cannot browse/yum etc. Few output that may be of relevence are here:
$ netstat -s IP: 149468 total packets received 6 with invalid headers 16174 with invalid addresses 0 forwarded 0 incoming packets discarded 118821 incoming packets delivered 101331 requests sent out 124 outgoing packets dropped 866 dropped because of missing route .....
I know this is not a win-doze forum but i always ask my questions here so here goes.I am having what appears to be a DNS problem on a friends laptop. He is running windows XP. I CAN connect to networks and even ping websites but i CANNOT browse in Internet Explorer or FIrefox.
I have Mandriva One 2009.0 (192.168.1.100) on one box and Mandriva Free 2010.0 (192.168.1.118) on the other. I can ping router (192.168.1.1) from both of these boxes but I can't ping one box to the other and the other way around. What's going on?.
Do I have to change some settings in router?. Or is it firewall issue on those two machines?. Both of these boxes are connected by cable. Symbol of the router: TL-WR340G.
I have two machines on this network, one running Ubuntu and the other running Fedora.
When I'm using the Wireless network on the Ubuntu machine, I cannot ping the Fedora machine. Everything else works. I can browse the net fine.
If I switch over to the Wired Network then I can ping the other machine.
I don't understand why ping doesn't work only over the Wireless. I can ping the router so I'm guessing it's getting blocked by the router but I didn't block ICMP traffic.
I tried asking on IRC and they ran out of ideas too to find out where the problem is.
my netbook shares it's wireless connection to my desktop. i've done this through the gui (edit connections > eth0 > ipv4 settings > shared to others) and it has worked for the last i don't know how many months.recently it had become a bit touchy with regards to how it was set up. it didn't work unless the netbook was already booted and wired in at the time of booting the desktop.now however it's gotten even worse and all i get when i connect them together is
My wired network dead which i used before 1hr. I seen my firestar firewall application blocked a hit from my internet provider gateway address. I allowed all the connection from my provider gateway after that hit. It did not work. I installed a new OS ubuntu 10.04 tls. and assigned the IP address but still I cant acess the internet. It says connection was established but i cant browse net. Some one pls help me. I tried configuring fire fox. no use.I am using Internet dish. I configure it by browser by entering dish IP.
We have two internet connections here, one through Allegro which goes through an ISA 2004 box and an ADSL2+ connection.Everything works fine when connected via the ISA box. Windows machines (and last I checked, a Macbook) work fine on the ADSL2 setup, but nothing Ubuntuesque will work properly through it.DHCP is fine (and the same thing happens with a static IP), it gives a proper address, DNS works fine, it's just whenever a page attempts to load, Firefox will sit at the "Waiting for <site>..." status until it gives up. apt does the same thing.What I've tested it on so far is:
- a homemade 9.10 box - an IBM xSeries 346 running 10.04 - an Acer Veriton M460 running 10.04 - an Acer Travelmate 6293 running 10.04
None of them will work with it. The Travelmate and the IBM are dual-boot, both will work fine on the connection under Windows. The Veriton is Windows only (tested using a Live CD) and is much the same.The router is a Thompson TG782T (Telsta branded). I'm at a loss with this. Any ideas? I can provide more info if needed.
The problem that I have been struggling with is while connecting to VPN server, I can't connect to other sites.
I am on 11.04, but this have been happening on 10.10 as well.
On Win7, I was able to browse the VPN and the other sites at the same time without any issue.
I also tried by checking ON the "Use this connection only for resources on its network" option (under IPv4 settings tab) but doing that is allowing me to browse all sites except the VPN site. The method that I am using is "Automatic (VPN)".
i have just installed ubuntu 10.04 on my laptop hp 550.after i finished installation i connected to internet via eth0 wired connection normally and everything was fine...after about 1 hour i had no internet....i try restart but is the same problem....this is strange because my eth0 says connection established and when i open mozilla i cant open google either..when i ping [URL] it says "cant resolve "
my internet works fine in windows so what should i do to have back my internet on ubuntu...i cant do anything else in ubuntu if i have not internet and i like very much ubuntu so
I've just done a clean install of F14.have a wired ethernet connection (no wifi).Initially, I was able to browse the web with Konqueror... but after doing a big package update, and installing Firefox, I can no longer browse any website (Unknown host errors).The strange thing about this is that I can ping successfully via hostname
I can ping IP addresses of sites, say 209.85.229.99 (google.com), but I cannot ping google.com, nor browse it. Same thing for every alphabetic address and hence in practice I have no internet on my laptop. In windows, I'd just flush DNS but I don't know what to do in Ubuntu. I am using WICD.
