Network card indicates it is connected, however, I am unable to surf the net.

[Shabakthanai]

My OS is Kubuntu 12.04 with KDE 4.8.5. Quad core with high-end video. Without warning, the network connection stopped working. The network card was only about 6 months old, but I purchased a new card anyway. I just installed the card, however, the provided CD was only for Win 7, Vista, or Mac. Because I am unable to connect to the Internet, how do I get the generic drivers to make connection? The card apparently does not connect automatically.

If the new and old card are both working, what other possibilities is there? When I click on Networking, it suggests that I have two connections connected. I am confused and do not understand something that has been so unconplicated in the past. Thanks for any help.

[vinnywright]

did you leave the old card in the box as well ?
is this wireless or wired ?

post the output of

lspci

and

sudo ifconfig

I guess you will half to right it down from lspci just the parts about network .....and all of ifconfig exept lo or loopback.

VINNY

[Shabakthanai]

steven@Yeshuah:~$ lspci
00:00.0 RAM memory: NVIDIA Corporation MCP78S [GeForce 8200] Memory Controller (rev a2)
00:01.0 ISA bridge: NVIDIA Corporation MCP78S [GeForce 8200] LPC Bridge (rev a2)
00:01.1 SMBus: NVIDIA Corporation MCP78S [GeForce 8200] SMBus (rev a1)
00:01.2 RAM memory: NVIDIA Corporation MCP78S [GeForce 8200] Memory Controller (rev a1)
00:01.3 Co-processor: NVIDIA Corporation MCP78S [GeForce 8200] Co-Processor (rev a2)
00:01.4 RAM memory: NVIDIA Corporation MCP78S [GeForce 8200] Memory Controller (rev a1)
00:02.0 USB controller: NVIDIA Corporation MCP78S [GeForce 8200] OHCI USB 1.1 Controller (rev a1)
00:02.1 USB controller: NVIDIA Corporation MCP78S [GeForce 8200] EHCI USB 2.0 Controller (rev a1)
00:04.0 USB controller: NVIDIA Corporation MCP78S [GeForce 8200] OHCI USB 1.1 Controller (rev a1)
00:04.1 USB controller: NVIDIA Corporation MCP78S [GeForce 8200] EHCI USB 2.0 Controller (rev a1)
00:06.0 IDE interface: NVIDIA Corporation MCP78S [GeForce 8200] IDE (rev a1)
00:07.0 Audio device: NVIDIA Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio (rev a1)
00:08.0 PCI bridge: NVIDIA Corporation MCP78S [GeForce 8200] PCI Bridge (rev a1)
00:09.0 IDE interface: NVIDIA Corporation MCP78S [GeForce 8200] SATA Controller (non-AHCI mode) (rev a2)
00:10.0 PCI bridge: NVIDIA Corporation MCP78S [GeForce 8200] PCI Express Bridge (rev a1)
00:13.0 PCI bridge: NVIDIA Corporation MCP78S [GeForce 8200] PCI Bridge (rev a1)
00:14.0 PCI bridge: NVIDIA Corporation MCP78S [GeForce 8200] PCI Bridge (rev a1)
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Link Control
01:09.0 Multimedia video controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder (rev 05)
01:09.1 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder [Audio Port] (rev 05)
01:09.2 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder [MPEG Port] (rev 05)
01:09.4 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder [IR Port] (rev 05)
01:0a.0 FireWire (IEEE 1394): LSI Corporation FW322/323 (rev 70)
02:00.0 PCI bridge: NVIDIA Corporation NF200 PCIe 2.0 switch (rev a2)
03:00.0 PCI bridge: NVIDIA Corporation NF200 PCIe 2.0 switch (rev a2)
03:02.0 PCI bridge: NVIDIA Corporation NF200 PCIe 2.0 switch (rev a2)
04:00.0 VGA compatible controller: NVIDIA Corporation GF104 [GeForce GTX 460] (rev a1)
04:00.1 Audio device: NVIDIA Corporation GF104 High Definition Audio Controller (rev a1)
06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
07:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6121 SATA II Controller (rev b2)
steven@Yeshuah:~$

steven@Yeshuah:~$ sudo ifconfig
[sudo] password for steven:
eth1 Link encap:Ethernet HWaddr 00:1a:66:b4:b9:ab
inet addr:192.168.100.11 Bcast:192.168.100.255 Mask:255.255.255.0
inet6 addr: fe80::21a:66ff:feb4:b9ab/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1412 errors:0 dropped:0 overruns:0 frame:0
TX packets:8059 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:251624 (251.6 KB) TX bytes:756801 (756.8 KB)

eth3 Link encap:Ethernet HWaddr 00:13:20:28:01:88
inet addr:192.168.0.103 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::213:20ff:fe28:188/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13070 errors:0 dropped:0 overruns:0 frame:0
TX packets:664 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:835698 (835.6 KB) TX bytes:69036 (69.0 KB)
Interrupt:41 Base address:0xa000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:472 errors:0 dropped:0 overruns:0 frame:0
TX packets:472 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:65231 (65.2 KB) TX bytes:65231 (65.2 KB)

steven@Yeshuah:~

[Shabakthanai]

It is a BYTECC PCIe Gigabit Ethernet Card and wired.

[michel]

I don't want to sound patronizing but it could be the issue is with your connection TO the internet. I sometime have a perfectly running wireless network at home but without a connection to the net. So maybe check that.

Michel

[Shabakthanai]

I use a router with 4 ports. I have two other laptops on two ports that are using a hardwire connection right now. I tried the desktop computer on a working port previously connected to a laptop with the same results. It doesn't seem to be the problem. Thanks for trying.

[vinnywright]

It is a BYTECC PCIe Gigabit Ethernet Card and wired.

just 1 or 2 ,,,,,lspci shows 1 ,,ifconfig shows 2

VINNY

[vinnywright]

if you left the old one in when it quit working it may be conflicting ,,,,I had a box that got hit with line surge burnt the net card I put a new one in and nothing ,,,,,,until I took the burnt one out ,,,,,,the burnt one looked fine until I looked real close at the base of the connection and saw blackening on the little resistors

VINNY

[michel]

Oh so you are talking about a wired desktop. Have you looked at the network configuration? Are you using fixed IP or DHCP? Why don't you remove the old card?

I would remove one card and try running a live CD to see if it will identify the card and assign it a driver.

Michel

[oshunluvr]

**totally obvious - but - swapped cables and router ports have we?***

Assuming yes, I would begin by removing the new card, booting to a Live USB and confirming the issue is in fact with the hardware not the software.

Assuming the hardware still fails this test, then re-install the new card and test it with the live USB.

If all these tests fail - we can assume the problem is elsewhere as it's highly unlikely that two network devices would fail with two installs (one live, one on the hard drive).

Other possibilities include a mother board failure.

[Shabakthanai]

**totally obvious - but - swapped cables and router ports have we?***I AM TYPING CAPS TO DISTINGUISH MY REPLY FROM YOUR ENTRY. YES, I HAVE SWAPPED CABLES AND TESTED THE PORTS WITH MY LAPTOP. THE CABLES AND PORTS WORK FINE WITH THE LAPTOP.

Assuming yes, I would begin by removing the new card, booting to a Live USB and confirming the issue is in fact with the hardware not the software. THIS CONFUSES ME. IF AND WHEN I REMOVE THE CARD, HOW WILL THIS TELL ME IF THE BOARD IS DEFECTIVE? DO I OPEN THE CD SAME AS WHEN I INSTALLED THE OS?
Assuming the hardware still fails this test, then re-install the new card and test it with the live USB. I MAY BE TOO DENSE TO DO THIS WORK. I DON'T UNDERSTAND HOW THE TEST HAPPENS OR WHAT TO LOOK FOR AFTER BOOTING WITHOUT A THE CARD. DO I ENTER THE DESKTOP USING THE LIVE CD OR DO I OPEN THE COMPUTER USING THE INSALLED OS, THEN OPEN THE liveCD USING DOLPHIN TO RUN THE TEST? THIS IS THE FIRST TIME I HAVE EVER TRIED TO DIAGNOSE SUCH A PROBLEM; I HAVE NO EXPERIENCE TO DRAW FROM.

If all these tests fail - we can assume the problem is elsewhere as it's highly unlikely that two network devices would fail with two installs (one live, one on the hard drive).

Other possibilities include a mother board failure.

**

[kdeputer]

steven@Yeshuah:~$ sudo ifconfig
[sudo] password for steven:
eth1 Link encap:Ethernet HWaddr 00:1a:66:b4:b9:ab
inet addr:192.168.100.11 Bcast:192.168.100.255 Mask:255.255.255.0
inet6 addr: fe80::21a:66ff:feb4:b9ab/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1412 errors:0 dropped:0 overruns:0 frame:0
TX packets:8059 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:251624 (251.6 KB) TX bytes:756801 (756.8 KB)

eth3 Link encap:Ethernet HWaddr 00:13:20:28:01:88
inet addr:192.168.0.103 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::213:20ff:fe28:188/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13070 errors:0 dropped:0 overruns:0 frame:0
TX packets:664 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:835698 (835.6 KB) TX bytes:69036 (69.0 KB)
Interrupt:41 Base address:0xa000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:472 errors:0 dropped:0 overruns:0 frame:0
TX packets:472 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:65231 (65.2 KB) TX bytes:65231 (65.2 KB)

steven@Yeshuah:~

Hi.

Look at your ifconfig output. Imho, the problem is discovered by starting from there. I think it's your modem, router and/or trouble from the ISP side. I would contact your ISP and troubleshoot the modem. But, also, reboot both router and then modem. That means power off and then on. Do a count to 15 for each. Also, try only connecting to the modem and see what happens.

[james147]

My OS is Kubuntu 12.04 with KDE 4.8.5. Quad core with high-end video. Without warning, the network connection stopped working. The network card was only about 6 months old, but I purchased a new card anyway. I just installed the card, however, the provided CD was only for Win 7, Vista, or Mac. Because I am unable to connect to the Internet, how do I get the generic drivers to make connection? The card apparently does not connect automatically.

If the new and old card are both working, what other possibilities is there? When I click on Networking, it suggests that I have two connections connected. I am confused and do not understand something that has been so unconplicated in the past. Thanks for any help.

I have this problem with my desktop, work around was to use network manager to disconnect the wired connection and then reconnect it... haven't looked into a solution yet...