Fedora Networking :: Network Manager Disconnects After 2-3 Seconds But It Works / Fix It?

Jul 3, 2009

I'm currently on F11, and experienced problems with Network Manager. Whenever I to connect to a network, wired or wireless, it just seems to try to connect, and then after 2-3 seconds, it just reports "Disconnected"..

Then I switched to network, and both wired and wireless works. so I don't think there is any driver or hardware issue...

Does anyone have any idea of this problem? The network manager have worked on the live CD version ( before installed to HD).

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Ubuntu Networking :: Network Manager Disconnects Every Couple Of Seconds?

Jun 7, 2010

Basically upon logging network manager will connect to my network, and most of the time it will only last 20 seconds or so before it disconnects and tries to reconnects, this tends to go on for quite a while. Logging off and logging on over and over worked once, for this post I opened pages between the 15 seconds that i was connected and after 20 minutes it has remained connected (every time it stays connected for longer than 5 minutes it will never disconnect again) I followed the HOWTO thread so forgive me if most of this information is useless

1 ) Machine Brand and Model (Laptop): Asus 52jr is the model number

2 ) Wireless Brand, Model and Wireless Chipset:

03:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)is what I found from running lspci

3 ) check interface:

Code:

wlan0 Link encap:Ethernet HWaddr 1c:4b:d6:5c:61:8b
inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::1e4b:d6ff:fe5c:618b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

[code]....

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Fedora Networking :: 12 - Network Works Only For A Few Seconds (vmnet Conflict)?

Dec 7, 2009

I have a Fedora 12 box, which works absolutely fine in a fastweb wlan. However, if I connect to another wlan where I need to link to a wireless access point cabled to the ISP modem/router, networkmanager shows the connection is ok, but...

1) I only can browse internet (es:www.google.it) for a few seconds after the connection is established, thanfirefox goes "Impossible to reach the server"

2) the same behaviour is confirmed by ping

Code:

[Adriano@localhost ~]$ ping www.google.it
PING www.l.google.com (209.85.135.106) 56(84) bytes of data.
64 bytes from mu-in-f106.1e100.net (209.85.135.106): icmp_seq=1 ttl=49 time=138 ms
64 bytes from mu-in-f106.1e100.net (209.85.135.106): icmp_seq=2 ttl=49 time=127 ms

[code]....

EDIT: There is a win box in the same net that is working fine.I see in the router config that ARP for the working machine is "complete", while for the Fedora one is "incomplete" Nothing changes configuring a static or dynamic IP address for the Fedora box I had a previous Fedora 11 installation on the same machine that now gives troubles, and it worked fine. But I can't tell if it's a software problem because my ISP seems to have telnet-ed the router, changing it's firmware (and maybe it's config). Shame on they.

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Jun 19, 2010

I've troubles getting my new Sweex wireless 300N USB adapter to work. Tried searching in several directions (see closed thread). Further investigations shows however it is caused by the NDISGTK wrapper for Windows drivers. Can anyone tell me whether Sweex is shipping a faulty driver (it is the latest available) or it is a fault in ndisgtk? Or maybe I'm doing something stupid myself, which I do not find completely imagenary below some more detailed information on my findings: Started with network off and examined the networkstatus

Quote:

tpeelen@CC-desktop:~$ sudo lshw -C network
*-network DISABLED
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller

[code]....

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Jun 14, 2010

I have used ubuntu in the past but had a lot of hardware issues with it and unfortunately moved back to windows (( BUT i have tried Ubuntu again and all seems to work great except wifi My wifi connection is sort of working because when i run SUDO IWLIST SCAN it does pull up all available networks. But in the network manager icon on the panel i left click but i see no networks and can't connect to anything. I WOULD LOVE TO keep Ubuntu and use it permanently but I must get wifi working or else this won't be possible.

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Nov 23, 2009

With Fedora 11, I got NetworkManager, and it never worked right.. Right now, the nm-applet crashes regularly, no message nothing, just disappears from the panel. I wrote a two-liner to run it in an infinite loop. But my wifi also disconnects every 10 minutes. It's like clockwork, it just disconnects. I see things about "error 38" in the logs. I tried downgrading, upgrading, nothing helped.

[Code].....

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Ubuntu Networking :: Qualcomm 3g Modem Disconnects After Few Seconds - Getting Failure Code 100

Sep 13, 2010

I have a Lenovo W510 Laptop with Ubuntu 10.04. The laptop has an on board Qualcomm 3g modem. I have managed to install the Qualcomm firmware and Network Manager detects the 3g device but when I try to connect it disconnects after a few seconds. My syslog has the error

Code: Got failure code 100: Unknown error

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Jan 10, 2010

Is there any application out there for linux that can notify me of when a new IP address connects or disconnects to my network?

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Ubuntu Networking :: Wireless Randomly Disconnects - Only Works Again After Reboot

Jul 3, 2010

I'm having a problem with my wireless connection. When it runs, it's perfect, but every once in a while (and increasingly more often) it randomly disconnects and doesn't reconnect when I click reconnect, even if I manually disconnect it. Every time this happens, I have to reboot the system, after which it works perfectly. Then it dies again.

I've checked around the forums, there are some similar threads but they seem to be specific to the wireless card. The reboot method works, but I'd really like to find a way to solve the problem without having to resolve to the Vulcan nerve pinch. I'm a real newbie to Linux and the more complex side of computers in general, and I hardly know what is what, so please excuse me if I seem a bit thick.

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Feb 25, 2010

I run KVM on 9.10 host and guest 9.10. Both are x64. When I halt the guest os:
My host OS looses its connection with internet for 10-15 seconds and then it comes back on. Probably something goes wrong with default gateway, as it looses only external network (I still can reach it on my internal network). I've googled a lot, but cant find anything about that. I use bridged network.

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Jun 22, 2011

Working on ubuntu 10.04 on an IBM Thinkpad X61 laptop with an Alpha 2W wireless usb card on wlan0. Once in a while the wireless network disconnects and can't connect to any network in range (open, wep, wpa, wpa2). It looks like it's trying to connect but then asks for a password (even if allready given one) and if open just not finishing connecting and trying to connect to another network. Happends the same with wicd. Network card is working ok. Also with other computers. Drivers are installed correctly and power consumption management is off.

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Jun 3, 2011

I'm working on setting up access for our developer via Telnet, we are on a local network behind a physical firewall. I set up the standard Telnet service for Fedora15 and from localhost I can login via any user and root.... However I cannot login from another terminal on the LAN, even though I can ping and FTP to the fedora15 box. I added the firewall rules for telnet, that did not work, so I disabled the firewall, still cannot get a connection via port 25. I feel either port 25 is closed in another manor or the telnet is restricted to the localhost.

Also I cannot login to root to configure the Firewall Desktop GUI, only standard users, is this an issue? I also cannot login to the console as root even though I use the correct password.I can only su to root and sometimes it is a PITA. There must be some settings to clear these issues up...

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Sep 13, 2010

I have Ubuntu 10.04 (32 bits) and a wireless usb adaptor Alfa Network AWUS036H with Chipset Realtek 8187L. After a few minutes connected, the adaptor disconnects and I can't reconnect again. I search this forum but I'm not sure about what to do. Do I need to get and install another driver? I need to use the windows driver?

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Mar 11, 2009

I updated my FC10 just a day back. The problem is that Netwrok Manager has disappeared. And in spite of re-installing it, it doesn't appear on the panel when i enter 'NetworkManager' as root in the terminal.I have a USB modem right now. Update was made through a broadband connection. Ethernet works perfectly well but this USB modem of mine doesn't work at all. And I have to use USB not Ethernet.

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Jul 7, 2009

I have got DHCP issues with Network Manager. Whenever I try to connect using static IP it works, but when I use use Netowork Manager with DHCP, it seems to try to connect and soon says "Network Disconnected"..I've managed to connect to wlan and eth using network, so there shouldn't be any hardware/driver issue.

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Fedora Networking :: 3G Dongle Doesn't Appear In Network Manager?

Jan 20, 2009

I have run Fedora 9 and 10 on my Dell Inspiron 640m for about 6 months now and generally experience very few issues with it. Specifically I've been running Fedora 10 KDE 64bit since it was launched. Up until I had to reload it a couple of weeks ago my Vodafone Huawei E172 3G dongle worked perfectly with Network Manager. Since the reload the dongle is detected by the OS (lsusb lists it correctly, etc) but nothing I do will make it appear in Network Manager.

I've tried manually configuring a GSM connection then plugging it in, but no joy. I've also tried using it in my Acer Aspire One which runs Fedora 10 XFCE and it work, but when I try it in another Dell Laptop running Fedora 10 KDE 64 bit it doesn't. I'm assuming that a recent update must have caused some issue as it has definitely worked in both Dell laptops in the past. As mentioned I've reloaded recently but the other laptop hasn't been.

I'm unsure where to go from here. I haven't been able to get Vodafone's beta drivers working under F10 (although I did under F9) and can't find any posts on this issue. The version of Network Manager that I'm running is NetworkManager-0.7.0-1.git20090102.fc10.src.rpm, which was released shortly before I reloaded. Chances are I just didn't try my dongle between the update coming out and the reload, so didn't notice the problem before hand.

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Fedora Networking :: Network Manager Settings All Grayed Out ?

Mar 10, 2009

I'm running Fedora 10. My Network Manager settings are all grayed out. They are uneditable. I can see the detected settings, but not change them. All of the settings fields are disabled.

Is there a way to enable these, so that they can be edited?

Starting with the menu in the upper left corner of the GNOME screen: System/Preferences/Internet And Network/Network Connections

The Network Manager window appears correctly.

I see all automatically generated settings that were created for my various devices:

In particular, I want to be able to edit "Auto vmnet8", for VMware usage.

I know about the workaround of going back to the manual network configuration as used in older versions of Fedora, such as editing the files in /etc/sysconfig/network-scripts/ifcfg-* and then enabling the old "network" service and disabling the "NetworkManager" service.

However, this workaround really won't work in this situation. The VMware interfaces, vmnet1 and vmnet8, are virtual interfaces that *only* exist when the VMware services are running. The VMware services are started *after* the old manual network configuration would be applied. So, at the time the scripts in /etc/sysconfig/network-scripts are processed, the vmnet1 and vmnet8 devices do not yet exist! I'm hesitant to change the numbering of services, lest other things break (VMware on Fedora 10 is rather fragile already).

I love the feature of NetworkManager to be able to automatically apply settings to newly materialized network devices (such as vmnet1 and vmnet8 when VMware is loaded). However, I need to also be able to edit those settings.

Is there a solution that will make my Network Manager "Edit" window not be entirely grayed out? I can see the settings pages just fine, but unfortunately, they are all disabled and I can't edit them at all.

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Fedora Networking :: Network Manager Connects With 'auto Eth 0'

Jun 23, 2009

I got a little problem with network manager. I got two connections in it, with two different DNS-Servers, because the one of my provider is very slow I surf with opendns, but sometimes that slows down too, so I want to change if necessary. Both connections got the same fixed IP.That worked all fine, until I got my new router (it's a Netgear WGU 624). It's connected by cable and I configured it like the old one. But for some reason instead of connecting to the manually configured connections, my fedora 10 creates a new one "auto eth 0" with a dynamic IP. So every time I boot or switch on from standby my PC connects with this one and I have to manually set it to the right connection. There's no chance to edit or delete it cause those two buttons are grey and won't work. I also tried restarting network manager manually and I also tried starting it with su as root.

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Jul 20, 2009

I lost my network manager applet after removing kde-desktop. restore it, as I dont find it in add to panel applications I dont have any clue, also how could I add bluetooth applet in notification area.

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Jan 13, 2010

I currently managed it to get a pptp-connect to my home network. now I have another little problem. NetworkManager always routes the whole network traffic over my home network if i am connected to the home network.If i set the "Use this connection only for resources on its network" I have do manually say:

Code:
route add -net 192.168.1.0 netmask 255.255.255.0 dev ppp0
After that only the correct traffic runs over the vpn. Now my question is it possible to setup the route via the networkmanager gui?

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Mar 27, 2010

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Code:
Mar 27 12:09:46 vmf11x64 NetworkManager: <info> Activation (eth0) Stage 4 of 5 (IP6 Configure Timeout) scheduled...

[code]...

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Dec 21, 2010

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Feb 22, 2011

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PHP Code:

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May 15, 2011

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Jun 26, 2011

I have a laptop with ipw3945 on. I don't want to use Network Manager. this is my wpa_supplicant.conf

PHP Code:

[code]....

I do as root:

PHP Code:

[code]....

In another terminal as root I do:

PHP Code:

[code]...

but no IP address got.

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Aug 24, 2011

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Sep 23, 2010

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Aug 12, 2010

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