Network Manager disconnects after 2-3 seconds, but network works..

atomax · #1 3rd July 2009, 11:46 AM

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).

LoonySeo · #2 3rd July 2009, 12:34 PM

i used to have the same problem with ubuntu. I dont know what is the problem, but it everytime that i reboot the computer, the network manager is ok

wvn · #3 3rd July 2009, 12:47 PM

Hi atomax. Is your nic Marvell Yukon by any chance?

LenL · #4 3rd July 2009, 01:18 PM

It was happening to me too. I read on this forum that it can happen if you have multiple wireless devices seen in your networking devices. So just review that and if you find an unwanted device listed or mulitples for the same one delete one.

atomax · #5 3rd July 2009, 03:31 PM

Thanks for all the replies.

My wifi chipset is Intel Pro/Wireless 4965...

I don't think I have multiple wireless.. But there is a bluetooth control, which I have disabled...

Here is my lsapi.. not sure if it helps.

Code:

00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port (rev 0c)
00:19.0 Ethernet controller: Intel Corporation 82566MM Gigabit Network Connection (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HBM (ICH8M-E) LPC Interface Controller (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: nVidia Corporation Quadro NVS 140M (rev a1)
03:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)
15:00.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev ba)
15:00.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 04)
15:00.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 21)
15:00.3 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev ff)
15:00.4 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 11)
15:00.5 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 11)

wvn · #6 3rd July 2009, 05:36 PM

Forgot to welcome you to the forum btw. Did you try to enable the BT client?

atomax · #7 3rd July 2009, 08:45 PM

Thanks

please to meet you wvn..

To answer your question... no.. I didn't even try to use BT yet.

atomax · #8 5th July 2009, 12:21 PM

Any more suggestions?

pankajp · #9 5th July 2009, 01:52 PM

I'm experiencing the same problem (with wired connection). In my case NetworkManager shows connected but internet (and all other networking stuff doesn't work). If i click on the network in the NM icon so that the network disconnects and then reconnects, then i have internet for some time (10-30 secs) and then it goes off again (i have to repeat the procedure to make internet work again).
I'm sure this is some problem in some recent update, as it was working fine until about a week or so before.
Thanks in advance if anyone has some suggestions

pankajp · #10 5th July 2009, 01:55 PM

Quote:

Originally Posted by wvn

Hi atomax. Is your nic Marvell Yukon by any chance?

Hi,
I'm having this nic.

09:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8040 PCI-E Fast Ethernet Controller (rev 12)

Is there something i need to do. Thanks a lot for ur information.

wvn · #11 5th July 2009, 02:13 PM

Does it disconnect when downloading at high speeds? If yes, you need to change the driver.Let me know.

pankajp · #12 5th July 2009, 02:25 PM

Quote:

Originally Posted by wvn

Does it disconnect when downloading at high speeds? If yes, you need to change the driver.Let me know.

Not sure about high speed, but it does disconnect. Ya, and mostly when i refresh/open many tabs at once (if that counts as high speed). And as i'm using a university proxy in local network, so maybe the connection to the proxy is high speed. What driver do i need to install. I think currently theres sky2 driver. I did try searching in the forum but couldn't get relevant results (this thread comes in front in all searched). Thanks a lot again, i think you may get it working for my. Which driver do i need to install?

EDIT: I got your thread wvn, http://forums.fedoraforum.org/showthread.php?t=224386 . You seem to have gone very far in changing the driver and compiling it for the current kernel. I'm afraid i'll not be able to try it. Anyways i'll keep the command you specified
ethtool -s eth0 speed 100 duplex half autoneg off
handy whenever i need it. For now i can live with reconnecting the network every now and then, and if need be i'll try the above command. Also you seem to be correct, the network not does go off after a fixed time, it seems random.
Thanks a lot.

atomax · #13 6th July 2009, 12:02 PM

Just found out it is a DHCP issue...
Whenever I set a static IP the connect can be establish.. Could anyone give me any suggestions on DHCP issues?