Ubuntu Networking :: Unstable Internet Connection (realtek)
Mar 11, 2011
Im new to linux (2 days only) so i have some driver problems. My internet connection is unstable. It reconnects every few minutes (5 min approximately). Im connected with wired dsl connection to routher. My network adapter is "Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller". I use Ubuntu 10.10 Maverick Meerkat release, kernel 2.6.35-27-generic.
I'm going to start using Debian as my desktop system rather than Ubuntu since I'm not really liking all the crazy eye candy and just wanted a fast and simple system. My main problem is networking, I guess I'll start off with my system specs and other information for problem solving.
I have a Realtek RTL8111/8168B Ethernet Adapter builtin to my motherboad which I am using, I could only get a basic connection, by basic I mean that it allowed me to connect to my local area network but not the internet. I then modified /etc/NetworkManager/NetworkManager.conf to change to managed=true this allowed me to use the internet, but the problem is, that it is a very unstable connection, the speed is very slow and it drops a lot! I have to carry on running /etc/init.d/network-manager restart twice to get my connection back, which lasts for about a minute.
I have Ubuntu running on my HTPC and for the longest time all this was working fine. Now all of the sudden my Internet connection is all sorts of slow. Chrome browser, transmission bt, apt-get, all have the same speed issue. I tried disabling IPv6, changing my DNS and installing all the latest updates. Nothing works.
I'm having trouble with my Samsung Netbook N220 and its Realtek 8192 wireless card and could use some help with diagnostics. I would like to use the netbook as a server and after a day or so the system stops responding. What I'd like to know:
- What do the "========>ieee80211_parse_info_param(): athros AP is exist" spam messages actually say? Does anyone else have this and stability problems?
- Why is the realtek driver package not working?
I'm running Ubuntu Netbook 10.04/Kernel 2.6.32-24-generic. Initially the card was unable to connect, so I installed the Realtek driver rtl8192se_linux_2.6.0017.0507.2010 which adds a kernel module r8192se_pci.ko. At first my system was hanging during bootup. I then restored /lib/modules/2.6.32-24-generic and now the card is connecting but the system is unstable. The 2.6.32-23-generic kernel, modules listed below, still has modules as installed by the realtek driver and is not working. Below the drivers supplied by ubuntu
I understand that wireless is one of the most common problems with Linux, although I did not have this experience with past distributions or versions. After two years away from Ubuntu I installed 10.04 and everything is working fine except the wireless connection. Actually, it does work and connect, but goes up and down, loses connection and in most cases does not reconnect, unless I am 1 meter from the router. The room next door is already too far, a place where I normally have my laptop connecting perfectly with XP.
I am using a Toshiba M70,some additional information below:
lspci= 00:00.0 Host bridge: Intel Corporation Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller (rev 03) 00:01.0 PCI bridge: Intel Corporation Mobile 915GM/PM Express PCI Express Root Port (rev 03) 00:1c.0 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 (rev 03) 00:1c.1 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 2 (rev 03) 00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03)
I'm using an Atheros ath9k wireless card that has been pretty stable since Ubuntu 9.04. I did a clean install of Natty and ever since my wireless connection has been pretty unstable.
It doesn't actually disconnects but I lose all connectivity. The wifi card continues loaded with a static IP Address assigned to it but I cannot connect to anything. The only way to fix it is restating the network manager and I have to do it at least a couple of times every day.
I tried to whitelist ath_pci on /etc/modprobe.d/blacklist-ath_pci.conf but the problem still persists. Also yesterday I enabled the ubuntu backports on my software sources but so far no kernel updates.
Here are some of the messages filling up the logs:
Since I upgrade to Ubuntu 10.04 my wireless connection is very unstable. I install the needed wireless drivers from 'Hardware Drivers' (Broadcom STA wireless driver) and I got wireless connection, but it randomly disconnect, and also connection is very slow.
I think that the problem are the drivers which are not very compatible with this version of Ubuntu, which means we need to wait for update? I have HP ProBook 4510s laptop, Intel PRO/Wireless 5100 AGN network card & Gembird NSW-R2 router. I'm only having this problem on Ubuntu 10.04, on other OS's the internet is fine.
I am running Ubuntu 10.10, and I would like to use my computer to share the internet connection from an ethernet port. For example, I would like to set up my computer as a wireless access point so I can create a network that other computers can connect to for internet.
Im not able to establish a Wireless Internet connection in Ubuntu 10.04.
Ive tried these steps:
1. Wireless Internet did not show via the Network-icon. Only the 2 LAN-gates where shown
2. I installed the Windows Driver (net8185.inf) via ndisgtk package
3. After restarting the computer, 2 LAN-gates and 1 WLAN where listed via the Network-icon
4. Normally WLAN should automatically start scanning for available networks, but that didnt happen
5. When I tried to connect to my own network, the computer tries to connect for 1 minute and than stops because no connection could be established
6. A wired Internet-connection does not give any problems
Details: - I first had Ubuntu 9.10 but I wasnt able to make a WLAN connection either. I followed the same steps. After that I upgraded to 10.04 - iwconfig in Terminal gives an IP-address which consists of 12 identical characters. - lspci in Terminal shows these data: 01:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02)
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My questions:
- How to create an Internet connection via my WLAN-card?
- How to install the option to search for available networks automatically?
I have installed 9.04 ( I currently have it on dual boot with Windows XP) and my problem is that I have no internet connection. I have a Motorola modem with a Realtek RTL8139 Family Fast Ethernet NIC network card ( it's a wired connection, btw) When I plug in the cable, there's a little animation, but after a while I get the message: Wired connection is not active (or something like that) Here's what I did so far:
1) I ticked the Wake-On-Lan option in XP, since I read it in the forums that I could solve my problem. It did not
2) I turned off my modem, rebooted my system.
3) I deleted the Auto Ethernet network, and plugged in the cable again...no use.
4) I did an ifconfig, since I know that is what you guys really want
evajulia@Derek:~$ ifconfig eth0 Link encap:Ethernet HWaddr 00:18:f3:ab:2b:3a inet6 addr: fe80::218:f3ff:feab:2b3a/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
I've been using a RealTek 8190 PCI wireless card on my desktop in Ubuntu 10.04. The net819xp driver worked fine in ndiswrapper. Then my housemates got a new router and switched our wireless SSID & password. In network manager, I can see the SSIDs, but when I try to connect to our SSID, it continues trying to connect but never does connect. Something related to the router change and router firmware upgrade created this problem and i'm sure i need to fix it on my computer. All my windows7 flatmates are connecting with no problem. Right now I'm using my laptop, so i can't copy & paste results from terminal commands,
I'm using Kubuntu 10.04.2 LTS on a Bangho laptop. Kernel 2.6.32-28-generic i686. My card is: Realtek Semiconductor Corp. RTL8187B Wireless 802.11g 54Mbps Network Adapter iwconfig wlan0 gives me:
Code: wlan0 IEEE 802.11bg ESSID:"Default_WLAN" Mode:Managed Frequency:2.442 GHz Access Point: 00:06:4F:8D:B9:AF Bit Rate=1 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr: off Fragment thr: off
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Usually when this happens, for 10 or 20 seconds it appears to be connected (i.e. the heart symbol is there) but I can't ping google or my router, then it "realizes" it's disconnected. It takes one or two attempts to reconnect successfully by pressing the "active" button. Meanwhile throughout the disconnections and re-connections the signal is very strong (98%).
I had the same problem with my old access point, at first I thought it was the cheap/old hardware, so now I bought an "ENCORE ENDSL-A2+WIGX2 | ADSL 2+ Modem with 4 Port Wireless Router". The problem persists only with a stronger signal.
I am running FC13 on a Compaq Presario 2100 using a Broadcom BCM4306. I was able to get it running thanks to Fedora Unity Project. But It's a very unstable connection. I don't know what settings to adjust or enable or disable. It's not my router, this is the only wireless connection in the house that I have trouble with.
Its a case of ".... wireless network connection active but still not internet connection .."I am using WEP - 128 key ... Works when I connect directly using ethernet cable ... but not wireless (pci and wireless router)
I tried to install Xubuntu 10.10 Maverick as dual boot on my laptop. However when xubuntu is on, I can't find a way to connect to internet. When I try the 2 arrows on the up-right corner the option for wireless is deemed. I tried offline/online, that did not work either. when I click the firefox It says you are not connected.
I seem to have is trying to get the internet to work. I can go to ..... ect but when I try to run playonlinux it says you do not seem to be connected to the internet, please post if you have anything useful, as I said I am very new to linux so be as detailed as possible.
I have two linux laptops. Currently, I'm using both of them at work, side-by-side. Now the problem is, I'm connected to a wireless router, but the wireless only works on one of the laptops. So I'm stuck with one laptop that has no access to the internet. Both machines do, however, have working ethernet nic cards. So, I was wondering if I could use the laptop with the wireless connection to share the internet connection with my other linux machine and access the internet on both of them. Or as an alternative, just use the internet on the machine without wireless and be able to switch back and forth, that would increase my productivity like 30 fold.
My wireless card works most of the time, however with prolonged usage results in a temporary halt in functionality. I am not sure how to go about diagnosing or solving the problem, and I do not know what information I should be providing.
I have the "Work Offline" problem: when I boot up, the icon on the toolbar tells me I have "No network connection". This is not quite true, since I can access the first page of any website - only subsequent pages are inaccessible. I get a message saying that Firefox is offline. However, when I uncheck "Work Offline" in the File menu, it makes no difference to this behavior.
The problem is on my Ubuntu Dell desktop, which is connected to the internet with cable broadband via a D-Link router (wired connection). It has worked fine up till now. I use Ubuntu 10.04 and Firefox 3.6.11. I am writing this on my Ubuntu Dell laptop which is wired to the same router, so I assume the problem is not the router. I have tried various strategies suggested in threads on these forums, including editing about:config, changing "allow" to "deny" in some lines of /etc/dbus-1/system.d/NetworkManager.conf and changing from Automatic (DHCP) to Automatic (DHCP) Addresses only, but no luck so far. The contents of ifconfig are:
If I comment out "auto eth0" as well, it makes no difference. If I uncomment both lines ("auto eth0" and "iface eth0 inet dhcp") then I lose the internet connection altogether.
I just installed Ubuntu 11.04 desktop on my desktop in dual boot with Windows 7.
Heres my problem, I am unable to connect to the Internet even though my wired Ethernet connection says it is connected normally. The wierd thing about this is that I also have a wireless card in my desktop and when I connect through that I am able to connect to the Internet. I am connecting to a router that is functioning as a repeater to my main router/cable modem. I have tried to solve this myself but am having no luck. Ironically, earlier today suddenly my ethernet connection worked for a few minutes without me modifying anything.
The output of some terminal commands are below.
Quote:
Quote:
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However a pint to that ip address (my router) is successful.
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Hosts.allow and hosts.deny are both fine (not blank but no entries)
I'm using ubuntu 10.04 dual boot with windows xp. Recently I'm having problems using the internet, I can connect to our wireless network but can't use the internet, firefox just says error on opening the page. But when im in windows xp i can surf and use the net. Is their a way to diagnose whats causing the problem. I use a Realtek RTL8187 wireless lan, it works fine before its just now that its not working with ubuntu.
I installed ubuntu 10.10 with windows 7 (dual boot) in my fujitsu lifebook. I use zoom ultra by Sentar EVDO MODEM ST880U. I tried pppoeconf or DSL or mobile broadband but fail to connecte internet. In first exprience on ubuntu 9.04 same via dell latitude with Huawei EC123 Data card.Any one can assist me to overcome the bad condition to like ubuntu as on offline mood in my work zone.Actually i used ubuntu 9.04 for my offline work in Dell. Now also same condition starts. Please help to come internet and enjoy ubuntu.
OS is Ubuntu 10.04. I have HomePNA-connection which is converted to Ethernet by Netsys NH-300 HomePNA-Ethernet adapter.
The problems that I have: Sometimes when I boot I don't get IP from DHCP. If try to ping any address I am told that host is unreachable. Sometimes this I can get IP by using command dhlient -r and dhclient to request new ip. Sometimes only way to get my connection to work is booting the computer.
Sometimes the connection works fine from the start but disconnects later for short time. Sometimes this happens every ten minutes, sometimes less often. If I wait for a while the connection might start working again, if not dhclient -r or reboot helps usually. But not always.
I just want to use Internet Connection Sharing (ICS) to connect to the internet. I have done a massive amount of troubleshooting, but some of it seems to contradict itself, and the only two things that I know for sure are that it used to work, and that my Ethernet cable is not the problem. When I use Terminal utilities like ifup and dhclient it seems that it can not determine IP information, but when I try to put it in manually, the "Apply" button grays out right after I finish typing it in. When I try to connect normally, in KDE or GNOME, the icon acts like it's connecting, then instead of having the connected icon, I receive a notification that "the network has been disconnected", and it goes back to the disconnected icon.
Oh, and by the way, I know that I could probably find a workaround, but I have limited resources, and this used to work. The Linux is a Dell desktop with Fedora 12 and the Windows is a Windows 7 HP laptop.EDIT: I hope that I didn't mess something up, but I accidentally used system-network-config to try putting in the IP address there, and ended up changing it back to the original settings, but the computer is now calling it Auto Ethernet in the taskbar icon, although sudo iwconfig in the terminal still calls it eth0.
I have installed fedora 12 recently. after installation i tried to connect to the internet using BSNL broadband connection. I filled in the details such as IP, Netmask, Gateway and even DNS servers. In the services also I ensured that the network manager services is on. However even though my computer cannot connect to the internet. I then tried the ping test of the modem from the address 192.168.1.1 and found that the ping test is successful. Then i tried the network administrator and there I noticed something unusual.
There are two options in the devices eth0 and eth1 thats ok but the unusual; thing is that the Activate (green button), Deactivate (red button) and even the delete buttons are in the background and I cannot select them. Isthis the problem for the network connectivity.
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I then tried the ping test of the modem from the address 192.168.1.1 and found that the ping test is successful. Then i tried the network administrator and there I noticed something unusual. There are two options in the devices eth0 and eth1 thats ok but the unusual; thing is that the Activate (green button), Deactivate (red button) and even the delete buttons are in the background and I cannot select them. Isthis the problem for the network connectivity.
I installed Ubuntu 9.10 using the default setup (Gnome I think) and on my Gateway Notebook using a wireless connection. It appears to be working great and I can even see my Windows drives and network storage on my home office systems.I have also set it up to run my favorite Bible software on Windows running under VirtualBox. I then installed the KDE Desktop so that I can select either desktop when logging on.
However, once I am in the KDE desktop, I cannot connect to the internet. I have checked and double-checked and the wireless settings seem to be the same on both the Gnom and KDE Desktops but still no network or internet connection when using KDE. I might mention that I am using the 64 Bit version of Ubuntu.
I am using Ubuntu 9.10 and trying to use Internet Connection Sharing through my Dell Mini 9 laptop.
The incoming internet is from wireless The outgoing internet is from Ethernet I am using a crossover cable as I have heard this is necessary I followed the 9.10 method on my Auto Eth 0 connection Here is a link to the Ubuntu Documentation I used The computer I am trying to share to does not pick up the internet being shared from the cable.
I have an EMachine T3095 with xp home os and ubuntu os. I install ubuntu in windows. In windows I don't load internet software, yet surfing the web fine in both os. Recently did complete re-installation of windows and ubuntu os, for got 3 trojan viruses on windows. Now can't get on the internet in windows. Emachine said I need to get motherboard downloaded to get LAN, which is not on windows software. Isn't the same motherboard used by ubuntu to get on the internet? Obviously some software has been corrupted? Which software could be the problem. Is there a link to download it?
I have a system with windows xp, and to connect to internet I use a usb card EVDO (brand ZTE) given by my provider (BSNL India).Now I installed ubuntu 10:04 but I do not know how to make my usb card work to connect to internet (the provider gave the software only for win xp)