Ubuntu :: Router Goes Out - Network Card Sleeps
Dec 17, 2010
Running 9.10 on the computer I am having a terrible time with.
Intro
I have a small office of 5 comps. I had a guy come in to change the router to a bigger one, to go from 4 to 8 outlets. I was changing the service, so first we went to the new company's smaller router and then to the bigger one.
Well, my old Dell and another older box never could get reconnected after the guy pulled out the smaller one and put in the bigger one. First migration was fine though.
I believe I have seen this problem before. I have had several instances of weird internet outages involving single (or worse, a pair of) machines that eventually can go back online. There are some serious bugs in NetworkManager I think which are putting these devices to sleep.
Symptoms
Symptoms I have already seen a lot around here. Yes, I have lights where the line goes in. The system will try to get a dhcp lease and then give up, telling me I am disconnected. That's it. I tried to install wicd on the machine that I reinstalled (again to 9.10), but it was the same, no way to get an IP address.
I have nothing in the networkmanager.state file at all. My nm.config.settings has a no-auto-default:00:16:82:XX:XX line.
And of course in frustration I deleted the eth0, so now I had to make a new one, and its not default.
Obligatory Begging
There is no way two machines have the same hardware problem at the same time. Plus, this is the third time in 6 months I have had two machines with connection problems, where we were checking lines against windows machines and wondering about hardware.
I am already resigned to re-installing on the Dell and hoping it goes ok (its really old). And on the other box (a server) I even re-installed multiple times and it still won't work at all, same symptoms. So I am worried at this point that both might be fuXXored by this bug.
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Apr 24, 2010
I'm having trouble getting my network set up the way that I want it/had it. You see, when I first set up my network, I just had my cable modem going directly to my standard wired router (A D-Link DI-604), which had DHCP,and was connected to all of the computers on my network. I had one switch hooked up to one of the ports of the router, but this was a regular switch, and it would not try to assign IP addresses, it would just pass through the DHCP info as I wanted.
Now however, my network setup has changed. My room mate and I both got laptops, and we decided that we wanted to have wireless access so we didn't have to constantly plug in to the router.
Now my network is set up like this: The modem is hooked up to the router(DI-604), which is hooked up on the LAN side to our computers, our switch (which is hooked up to 3 more computers), and to a wireless router card (A Gigabyte GN-BC01).
The wireless router card has two jacks for ethernet. One for WAN, and one for LAN. The LAN side we have plugged only into the computer in which the card is installed.
Now the problem is this: The wireless router card comes with DHCP by default, and it's assigning addresses to the laptops and to the computer hat it's in, and worse, the IP addresses are on a different subnet than that of the main dlink router. The Main (dlink) router assigns addresses from 192.168.0.1 (itself) to 192.168.0.254, while the wireless router card assigns addresses from 192.168.1.1 to 192.168.1.254 (itself).
Because of this, I cannot access services on the wireless network from my wired network or vice versa. The first thing I tried was setting the card to assign addresses from 192.168.0.12 to 192.168.0.253, however it just said "internal error" when I tried to do this. I decided that this may be because it sees that it was being assigned an address on it's WAN side on the same subnet. So the next thing I tried was disabling DHCP and setting the "LAN IP Address" to 192.168.0.12, hoping that the DHCP would just go through the card, like a switch. I would have set the LAN IP address to be assigned by DHCP, but this was not an option, so I decided that'd be the best thing to set it to.
Once again however, setting the LAN ip address to an address on the same subnet as that of the IP assigned to it's WAN side caused it to report an "internal error". I verified that this was the issue by setting the LAN address to several other private IP addresses to test (I.E. 10.0.0.1, 192.168.3.1, 192.168.5.12).
My question then really is: How do I set up both routers so that I can access services and computers from each network from the other network. Should I set them with different subnets and set the gateway on the wireless network to the main router? To the wireless router card? Should I put them on the same subnet? Will it know how to communicate?
Here is a link to (picture) my network diagram. Network Diagram
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Dec 26, 2010
I have a laptop connected to the the net thru an adsl modem, when I switch off the laptop network interface,(thru system-config-network) the light of the laptop network card plugged in the router stays on ( green) where as in my pc, when i do the same thing , the light of my pc network card goes off in the modem
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Jan 14, 2010
I am running ubuntu server x64 as a router. I currently have 2 LAN cards, eth0 and eth1. and I want to add wireless capabilites to the machine.I was wondering if any of you know which card I could use?I want it to be supported in ubuntu server and it must be n-draft, as it is to replace a Edimax n-draft router.
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Sep 25, 2010
Would it be possible to insert another wired network card into the router-connected computer, share the internet connection and be able to transfer files between the two?
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Apr 8, 2010
I clicked "Network Settings", and I found that the ip address was wrong, which is "192.168.1.10/24", and netmask field is empty, so I modifed the configuration file located in /etc/sysconfig/network, named ifcfg-wlan0, added one line(NETMASK= '255.255.255.0'), saved it and reboot the system. After rebooting the system, I still found the ip address is wrong and netmask field is empty, so I have to use ifup command to activate my card manually every time the system starts.
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Feb 2, 2010
I configured Dell Latitude D620 to go to sleep mode (suspend to ram) when i close the lid. It suspends ok and then I open the lid. It wakes up ok, but few seconds after goes to sleep again! So I need to press the power button to force it to wake up.
Sleep button works just fine. /etc/acpi/sleep.sh from console too.
/etc/acpi/events/lidbtn
Code:
event=button[ /]lid
action=/etc/acpi/sleep.sh
update:
I noticed that it always goes to sleep again when I wake up laptop by opening the lid. For example if I run /etc/acpi/sleep.sh, pm-suspend or press the sleep button laptop goes to sleep, then i close the lid and when i open it back - the problem occurs.
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Feb 7, 2010
So I've recently switched over to Ubuntu as my media center OS, and I'm running Hulu Desktop (which works very nicely).
The problem is, the screen keeps sleeping on me after inactivity and it won't come back unless I use the keyboard or mouse (the remote won't wake it). The computer is still running, audio and all - and just a black screen.
I have the screensaver set to never, the power saving settings set as high as they go - and it still does it.
I've searched the forums for a solution but I can't seem to come up with anything; any ideas?
Looks like I found a solution; Caffeine (launchpad.net/caffeine) is a little applet that will disable sleep/screensaver while in certain apps (or for a certain amount of time). I don't know why changing the system preferences wouldn't accomplish this, but Caffeine did the trick anyway (and actually works out better anyway)
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Oct 29, 2010
I use debian sidunstable. When I suspend my PC, it does sleep fine, but when I try to wake it up, I get a black screen.
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Jul 22, 2011
I have very small ARM computer with Ubuntu 9.04 (Jaunty) running as a backup and media server for my house. I have attached a new "WD My Passport" 750GB USB drive to it. The drive is recognized and I can mount it and read/write files fine. After several minutes, the drive goes to sleep, even if I was in the middle of writing a backup to it. I can force it to start again with sdparm, but it needs to not shut itself down while it's being written to in the first place. I have tried this command to disable the standby state but it doesn't work:
root@Plug:~# sdparm --clear STANDBY -6 /dev/sdb
/dev/sdb: WD My Passport 0730 1008
change_mode_page: failed setting page: Power condition
I have also been told to change /sys/block/sdb/device/allow_restart from 0 to 1, but no such file exists and one cannot be written there. The hardware itself is fine, if I plug it into a Windows computer, it will not sleep while in use.
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Apr 3, 2010
i have set the display to go to sleep after 5 min. but it still goes to sleep when i am watching movie.
how can i stop this, it should only go to sleep when it is ideal, not when i am watching movie
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Jul 21, 2010
I am having a problem watching videos and such in 10.04 LTS, In power management I have display set to sleep in 1 hr but it is going to sleep every 10 minuets and prompting for my password everytime I make a mouse or keyboard movement. Makes it kind of difficult to watch a video.
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Jun 15, 2010
My on-board LAN died so I added a realtek RTL-8029.I modified the BIOS so it used the PCI network card.I restarted the network using networking restart.But i still cannot ping router.
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Jun 2, 2010
I have encountered this scenario wherein malloc does not return.
Code:
char * tmp;
rs = 100 to 40000 bytes
[code]...
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Jun 13, 2010
I setup the hostname for my linux machine to Linux. If I try ping Linux from the same computer it works. If I try from another computer inside my network the host can not be resolved. If I ping the IP from another computer it works.
I take a look in my router at DHCP client list and my linux machine doesn't have the Hostname set up.
How to broadcast the hostname to the entire network?
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Sep 4, 2009
I wanted to know if i can install mrtg on a client computer in network and measure the network's router traffic.i know that it can be installed on the server.
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Apr 15, 2010
All settings are correct as far as i can tell. The wep key works on all my windows boxes. When i have connect automatically enabled it never tries to connect. if I go to edit it it pops kde wallet up i put in credentials. wallet goes away then nothing happens. if i double click connection to my router also nothing happens. I have the wep key in there and i even made it visible to make sure.
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Jul 30, 2010
I'm having a strange problem with my network connection/DNS. I turn computer the on and it recognizes and connects to wireless or wired but I can't access any Internet resources or my router. If I ping the default gateway, I get no response and I get DNS errors from any network services that run at start up. If I stop and start the network daemon then it all works fine until the next time I turn on my laptop. It does this for both wireless and wired connection.
I've tried to edit the network interface information in YaST but it says that configuration is handled by knetworkmanager and I have no idea where that information is accessed. I should point out that it all worked fine until I tried to connect to open WAP at my school and couldn't so I connected to the wired network. Next morning I had this problem when connecting to my home network. My questions are 1. What could be the cause of this error and 2. where does one configure the network interfaces when using knetworkmanager
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May 16, 2011
So up until I updated from Opensuse 11.3 to 11.4, I hadn't any issues with my network connection. At least none worth mentioning. Once I installed 11.4, I've had weird issues with varying lengths of connection. Sometimes I can't connect anywhere, sometimes I can only get to the router, sometimes I'm 100%. I'd fiddle with YAST until everything worked. I honestly have no clue whether or not anything I did had any effect.
Enough of the iffy history, here's what's happening now. For the past few weeks up until last night, I have been at 100% connectivity. I never turned off my computer until last night (it just shut itself off, like the cord was unplugged. I dunno what happened, maybe it was my foot, maybe the PSU. I think it has happened before.). When I turned it back on, I was only able to connect as far as my router (192.168.1.1, a D-Link Gaming router that has always been very good to me). I could not make it to my modem (192.168.0.1, a Quest DSL modem. Once I can get here, then usually I'm good to go 100%).
I tried again this afternoon, and no change. I then get the crazy idea to unplug the ethernet cable from it's PCI-card home and return it to the onboard port (which I long ago declared defunct). Immediately after plugging it into that port, I ran "ping 192.168.0.1" and I started getting returns. I open up Firefox and try to load an external page, and nothing happens. I go back to the console that I was pinging from, and it had stopped. I start pinging my router, and no luck. What I conclude from my little experiment is that the router is not at fault.
1. It did not change at all between being at 100% and being at 0% after reboot.
2. I was able to get returns from the modem, past the router, for a brief period of time while using the defunct ethernet port.
Since I never had these problems before updating to 11.4, I'm inclined to believe that it was the update that started these problems.
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Sep 7, 2010
Is there a way to see the manufacture of wifi router/card remotely like "inSSider" shows, for example ???
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Aug 14, 2010
I am thinking of moving the router behind a server and connecting the server directly to the internet via a modem. Are there any security issues related to doing this? or other things I should be aware of. Iptables are implemented on the server blocking access on unused ports.
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Mar 8, 2010
My wireless card isent detecting my router even though it has detected my 3 of neighbors wifi. the only reason i thought that it may not be able to detect mine is that i use a wpa2 encrption rather then a wep like my neighbors. so i tried to go and reset my router using my other desktop and set it to a wep encryption, but for some reason my computer still did not detect it. i am using a dell dimension comnputer with both a linkseys N gigabit router model number :wrt310n and the reciving card linkseysduel band wireless N network adapter model number :wusb600n. can somebody please tell my what i am doing wrong? this is rather annoying as i have to drag my desktop and moniter out to the living room just to physically connect to my router to enable internet.
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Apr 4, 2010
I have a Belkin Wireless G F5D7230-4. I was attempting to configure a wireless card on another computer on my network when it froze during the reboot phase after making settings adjustments. The wired connection is fine, except on that computer that I was making the adjustments from. It won't connect at all. I plugged a friends netbook into the same wired line and it connected. Also there is no wireless signal on any laptops. Mac, Win Linux, don't matter. I tried all the various methods of resetting to default but still when I try to access the router's config page @ http://192.168.2.1 I get the error Code: The server at 192.168.2.1 is taking too long to respond.
[Code]...
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Jan 6, 2010
Since this is my first post, before i describe my problem, i'd like to say regrats to all of you for maintaining here such a good support community.
So, here we go: I have a headless Debian box and i want to set it up as a small office router/gateway. On the box i installed a regular NIC and a Viking Traverse ADSL+ Card which gets recognised by the OS as an 8139 ethernet card and has an embedded ADSL+ modem. The modem is accesible through the PHY interface once it gets assigned an IP. Having said that here is the actual setup:
eth0 : Viking Card
eth1 : NIC (this NIC is connected to a switch)
eth0 : 192.168.1.2 (internal modem is on 192.168.1.1)
eth1 : 192.168.1.3
/etc/network/interfaces
[Code]...
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Jul 2, 2010
I am really interested to configure my old desktop with Slackware 12 as a router. But unfortunately I did not found any other ethernet card (second) as Realtek 8029. (I need two ethernet cards according to the howto [URL]) It is possible to get up and running this card? I was googling a lot. I tried to use the ne2k-pci module. It seems that it was loaded successfully, but I cannot see my interface (eth1) with ifconfig.
lspci shows:
Quote:
00:0b:0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8029(AS)
lsmod:
Quote:
ne2k-pci 12768 0 (used by)
[Code]....
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Sep 19, 2009
RT2500 wifi card could not connect to wireless router using WPA personal.OS - RHEL4; Dell Inspiron C600; interface detected ra0
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Jul 12, 2010
my wireless home network is not recognized by my network card (RealTek RTL8190 mini PCI). The post was as follows: "I am using a new computer with Windows 7 , Athlon quad core 2.60 64 bit, 8GB RAM. Internet conection works fine with ethernet but ubuntu does not see my wireless network. card (RealTek RTL 8190 ID: 10ec:8190). Have searched this forum but unable to come up with a fix. I was looking for windows XP drivers to use Ndiswrapper but could not find a list of .inf files. My network is OK and works perfectly in windows and with my 2 laptops. Can anyone point me in the right direction? Additional info: install was done within Windows using WUBI to a separate partition on my HDD. I am new to this and thouroughly confused as to the procedure for installing the drivers if they are in fact available."
I am very frustrated in that I would like to use Ubuntu 10.04 but it is useless without internet connectability. I am new to linux and do not understand where to get the appropriate drivers or how to install them. I wish someone would answer this post and either give me a clue what to do or just say "give up" and uninstall ubunutu.
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Aug 13, 2011
I've installed the Ubuntu 10.04 Server onto a PPC G4 Mac just for the experience of setting up a server. During the installation process Ubuntu couldn't auto-configure my DHCP Network. I'm using the airport card on a wireless network. How can I manually configure the network once Ubuntu is installed.
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Jun 27, 2010
I'm trying to get online on my laptop, I just installed Ubuntu 10.04 (Side by side with Windows 7.) I'm looking over the networking help files, as well as the troubleshooting and nothing seems to be working. [URL]. From this troubleshooting guide it tells me to open the terminal and type the command "sudo lshw -C network" and when I do, it asks me for my password but when I try to type it, nothing comes up. So I run it without typing sudo. It says "*-network DISABLED" which in the troubleshooting guide means that my router is off, but I'm clearly online on this computer as of right now.
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Jan 29, 2011
I have a Broadcom Corporation NetXtreme BCM5721 network card on my server at work.Everything works fine for a few weeks, then randomly the network connection on the server will stop working. After it stops working, I will try to reconnect with the network manager, it shows a wired connection available, it shows the "connection in progress"animation, then the "connection disabled" icon.
I uninstalled the network manager and used manual configuration, but do you think the network manager was the issue? I can't have the server disconnecting randomly every few weeks with no way to know what the real problem is. Was there an issue with the network manager with 10.04?
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