Network Card Auto-negotiation Mystery?
Apr 18, 2012
I've a D-Link DFE-520TX PCI Fast Ethernet card, which is/was excellent until this first problem. 2 nights ago there was some good lightning/thunders activity, resulting in burning of ISP network switches. This morning they replaced the switches and brought up the network, but here's the problem:1) Under the default card setting with Auto-negotiation, PC looks for DCHP Server address resolution and ends up with YELLOW triangle in the system tray.2) Whereas, when I CHANGE the card setting to 10Base in FullDuplex, then PC gets connected to the ISP network.ISP support said that either the card could be damaged due to lightning strike or it could be due to damaged cable running from port box to the PC (RJ-45). I'm wondering, could lightning strike damage a Network card in such a partial manner (just one feature, i.e., Auto-negotiation)? But that person warned, there will be deterioration in ISP speeds when I use 10Base in Full Duplex (for now) compared to Auto-negotiation speeds. Speeds really came down badly, that's understood.
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Mar 14, 2013
I have already exploited Metro Ethernet, but I don't understand why auto-negotiation does not support for Ten Giga ports?
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Oct 17, 2012
confirm if "negotiation auto" is supported gigabit port for C3925E router.
Router(config-if)#Interface gi0/2
Router(config-if)#description test link
Router(config-if)# no ip address
Router(config-if)# negotiation auto
^
% Invalid input detected at '^' marker.
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Jun 11, 2012
We are facing to an annoying issue. We have a 6509 running in Catos 8.3(4) with WS-X6548-GE-TX, WS-X6348-RJ-45 and WS-X6148-RJ-45. When we configure the mode in auto negotiation, it comes up in half duplex. We need to configure the speed mode at 100Mbit/Full to make it work. But if the chassis or port restarts (not the server), the link becomes half duplex. This happens only on module in Gigabyte like WS-X6548-GE-TX.
Cable have been replaced but does not work. It is not happened on another chassis running on IOS 12.2(18)SXF17b with WS-X6548-GE-TX.
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Jul 28, 2012
Nexus 5500 support auto negotiation on 1gig sfp port? There is an end device that only support auto negotiation and cannot be manually set speed/duplex.
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Oct 8, 2012
I have two Dell computers: one Dell Studio XPS 8100 and one Dell XPS L702 laptop. In my system I have internet that goes through a router. My Studio XPS is wired internet connection while my laptop is on wifi.
Recently, for no apparent reason (it started on Sunday), I have no internet connection on my Studio XPS tower. Wifi works fine on the laptop. I have also tried wiring my laptop in to the router and it recognises the LAN connection and I can get internet connection. So I know the LAN and the router and cables are working fine.
But still I have no internet connection any more on my Studio XPS.I am at a loss as to why only the hardwire internet connection to my Studio XPS is failing, yet there is clearly still an internet connection that allows me to connect my laptop via both wired and wifi connection. [code]
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Feb 27, 2011
We are trying to take ADSL interface into another VRF i.e (ip vrf forwarding VRF2 under dialer interface), the ip address negotiated command disappears, and although the dialer interface becomes up-up state, the adsl interface does not get an IP address dynamically.
Tried:
1) to reenter ip address negotiated again after changing the vrf of the interface, still the dialer interface shows "no ip address" under configuration
2) ppp ipcp accept-address again does not work.
the IOS version:c880data-universalk9-mz.151-2.T1.bin
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May 5, 2011
I had this problem since I installed this game (GTA San Andreas). So, I found that it keep auto alt tab when I play GTA only. Not other game. When I restart, it is gone. and will occurs when I open GTA. So, i try to scan and delete the game and the problem fixed. Still, when I install FiFa 2011, it is also happening. So, I deleted the game but the problem didnt fixed. Well, I also download Sims 3. and when I play the game, I tried to remove my Tenda Wireless reader, then the auto alt tab is no more occurs. So, it seems like I have to play games without using internet. Which means I can't play online games. So, I am telling you guys that I am having problem with auto alt tab/ losing focus when playing game/using programs like google chrome. So, what should I do for know? I think it might cause of my Tenda Wireless Reader? I'll try to use wire into my wifi then.
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May 18, 2013
I have a question about speed negotiation process between interfaces. I have 3650X Sw and 2960S-48port. All ports of two are GigabitEthernet, however the link between them is only 100Mb/s, Full duplex. I try to set the speed 1000 Mb/s manually in the interface then the interface never up. Its status is down/down. I must set back to speed auto. I show interface Gigabit0/24 in Sw 3650-X and figure out that there are many output drop (over 600000). I clear counter then after two days the output drop is over 70000. This link is trunk link between two switches, all ports of access SW are Gigabit and connect to PC. First, I thinks the 3650X is throttled somewhere in output direction of trunk link. But there is another trunk link (Gi0/23) to another 2960S-48port and no output drop number in this interface. This Giga 0/23 speed is 1000 Mb/s (auto speed, auto duplex)
Does any outside things impact the speed negotiation process between 2 interfaces? And output drop number may caused by abnormal speed between two Gigabit interface?
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Aug 23, 2011
I'm renting a basement at the moment and I am trying to get my desktop to connect to their wireless network. My laptop is fine but the desktop just keeps restarting itself when its attempting to connect. This didn't happen before I moved. When it finishes restarting there's a popup asking to send a error report to Windows. Since I have no internet that won't I clicked the details of the error message this is what I see.[CODE]
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Jun 18, 2007
How to change or modify the auto generated network key? I am trying to work around but no luck. Is there a way to do this or once you generate a network key it is a default.
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Apr 20, 2012
I think I am having problem with my network card I am running windows 7 with Dell wireless 1390 WLAN Mini-Card lots of times the signal is low and I get the error message no internet connectivity or some other error message that I am not being able to connect to the network provided by my wimax modem, Is there any program that I can download to test if there are any errors related to the network card or any way to fix this?
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Aug 21, 2012
This past weekend I went out of town and took my Windows 7 laptop with me -- since I returned home, it has been unable to connect to my wireless network. Other devices in my home connect to the network just fine, and the problem laptop has always been fine until now. My network card is an Atheros AR9285, and I'm attempting to connect to a Medialink router with WPA password protection and AES encryption.My wireless network icon in the task bar has a yellow sign with an exclamation point in it. It says "No Internet access."
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Jan 30, 2013
In the bottom floor there are three computers, an iMac computer that receives an average wireless Internet signal, desktop computer and a laptop.I want to take care of the desktop computer and buy a network card, the next card:TP-Link TL-WN951NNow it has three antennas, each of its reception range is 2 dbiI should buy three of the 10 dbi antennas and connect them to the network card?It will give a good solution strong wireless signal and good speed?
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Feb 2, 2011
I have a small office with 5 computers. All are Windows 7 and networked via a domain and a central server. Internet is T1 - we have a modem, router, and switch in that order. One of my computers just stopped recognizing the network and has no internet. I have checked all the cables and know that the internet is running to the computer because I have a VOIP phone on the same line that works fine.The computer can recognize the Network card and says that it is functioning properly.All other computers are functioning properly and are all able to see the network and have internet.
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Jan 16, 2011
I currently have a netgear 600 router transmitting both 2.4 Ghz signal and 5 Ghz signal but my laptop can only receive the 2.4 Ghz signal. My question is should I purchase a 5 Ghz signal wireless card and does the benefits outweigh the cost?
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Aug 23, 2011
At first it seemed to happen everyday at the same time, but now seems completely random (happening twice a day somedays). At some part during the day while the user is busy with this system it drops the network connection. The ONLY way to get it back is by restarting via the reset button. Shutdown or even logoff just hangs. Nothing regarding that card will work or respond, you can not even disable and re-enable. I can however get the wireless to work without restarting. I've done everything I could possible think of including format and re-installing Windows. Something new I've noticed is that the user always has MS Access (in runtime mode) running while network goes down and then you can not end that process.
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Mar 26, 2013
I have a client using a Dell Poweredge SC440 server. About a month ago the system crashedfter some detailed checking I found it had burned some caps. on the motherboard. I replaced the motherboard & had to reinstall SBS 2003. Since doing this I can't get the server network card to connect. The machine does have 2 NIC's one for the server & one for the internet, neither of which will connect. I believe I have the IP address of both cards incorrect. Could someone tell me what the correct IP addresses (all of them) should be for a new install of SBS 2003? I know the IP address of the router & the service provider (AT&T), but these don't work. I do have a printout of the server when it was originally setup but it only give the server IP which is 192.168.2.1 I have put this address in the IP of the card but don't know what goes in the default gateway nor the perfered DNS
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Dec 5, 2012
I have disabled / enabled and unistalled / installed and updated driver software but to no avail.It has been replaced, I have refreshed TCP/IP as per previous instruction found here and it did go a bit further, but now stuck as per below from CCX diagnostics Utility:
[code]...
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Feb 1, 2011
I have just given my Mum an old Dell desktop computer of mine. She has BT Broadband with a Homehub. I have connected everything up and installed the Homehub software on the computer but when it tries to search for the network connection via the BT software, it keeps saying the network card can not be detected. The network cable is plugged in and working. All the drivers are up to date.
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Mar 1, 2011
I had it working fine up until i decided to install a new harddrive on my xp pro machine. but to the point, when i connect to the 3g card its fine, but if i try to enable the lan at the same time it disconnects my 3g card. my problem isnt how to network two computers, its how to get lan and a usb modem working simultaneously. i have tried to enable ics, then reboot. same results. if i can get the lan to stay on while the 3g card is on i have the rest whooped.it is some kind of setting somewhere. maybe i need to install windows 2003 server or something like that.
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May 22, 2012
I have a motherboard intel DG41RQ and it has a built in lan card but i wanted to put another lan card via the PCI express slot and i put it and the flash lights on the network card are flashing but still the hardware manager and everything on the computer haven't even noticed that i put a new hardware.
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Apr 8, 2011
dell xps t500
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Sep 14, 2012
I have an ASUS M4A785-M MB with an on-board LAN and all of a sudden stopped working yesterday. I have it connected to a 4-port D-Link network switch which has one other computer connected, and the switch is hard-wired to my wireless router.
Here are the trouble-shooting steps I've tried:
- uninstalling/re-installing the driver
- tried using different wires.
- by-passed the switch
- used the wired connection with the other computer
- tested the wire for my troubled computer on the other computer and it works fine
- pinged the loop-back IP address (127.0.0.1) and it tested ok
- bought a new NIC and still no connection
When I go to Network and Sharing Center, it shows my Home GRoup but then has the bid red X from the Home Group to the Internet.
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Mar 27, 2011
i am able to connect to wireless networks but when i use my Ethernet card it says unidentified network
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Jun 22, 2011
I run a windows 7 x64 and I am currently running a Intel (r) 82579V gigabit network adapter. The thing is, the driver was made for 82579LM and V versions. Most of the time, my computer reads the adapter as the LM version, in which the ethernet just won't work. Once in a while it gets the V version and everything is alright, but i can't live with such uncertainty. Mostly people suggest i should just buy a new motherboard (?) or a new network adapter, but i'm sure it's a software problem. Shouldn't there be other solutions? The card itself is integrated.
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Jun 2, 2012
Recently I dual-booted my PC from Windows XP(On which the LAN card was working and i was able to access the internet) to Windows 7.Then i formated the drive on which WinXP was installed. Sometime later i noticed that the LAN card (Atheros A8151 PCI-E Ethernet Controller) was not working i went into the adapter settings in network control in the control panel and there was no adapter. i checked the device manager and there was no option called NETWORK ADAPTERS.
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Sep 3, 2012
I have a win xp system which connects to internal network & Internet. The problem I have is, for each work i need to change the IP address.
Ex: For internal network the ip should be 192.168.0.1 To connect to internet the ip should be 192.168.1.1
Now I want to be connected to both internal network as well as internet at the same time. So what should I do ?
* I can not add another physical network card.
* I can not change the IP's of any other system or config servers etc... (as it is used by our internal application, doing so will make a mess.)
* I have the admin rights so any software changes to my system can be done.
So i was hoping to add a virtual network card, and configure it to the new IP. So can that be done ? if so how ?
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Mar 13, 2012
Just built my new system and when I installed my network card drivers and utilities, a message comes up ASUS Wireless LAN card is taken apart from your desktop PC.
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Sep 20, 2011
I recently install xp pro and update all necessary drivers for the computer.I also plug-in another network card, this nic is working but seem browsing the web is slower than the original network card comes with the motherboard. Before both network cards show up in (my network places). Now the network card comes with the motherboard doesn't show up, only the network card connection just installed.
I check the device manager both of the network adapters are there, check both of box that say place LAN on taskbar.This could be i have find and install revised intel chipset and lastest BIOS for the pc, now the hard drive activity LED doesn't lit and the ethernet controller has issue. Note when I plug in the cable to ethernet port (one built with pc) there's show both activity light and connection light, but can't connect to the internet.
pc info:
winxp pro sp3
pentium celeron
256 mb of memory
manufacturer: gateway
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Nov 5, 2011
im using microsoft network monitor to monitor all traffic in and out (public) and mirrored ports for local traffic, except wireless traffic as its connecting to the router. I want to use a wifi NIC on the server to broadcast, so wireless clients can connect via the server and obtain DNS and DHCP etc from there, therefor, monitoring all traffic.
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Apr 7, 2011
Intel wireless adapter card doesn't recognize wireless network - computer says card is ok
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Feb 10, 2012
Just finished my first build and everything went pretty smoothly but my wireless network card wasn't working. I noticed after I opened it back up that in order for my to screw the card in place it made the right side of the card tilt up.
So I just set it in the PCI slot correctly but there's no way for me to screw the card in place. I know my MOBO is set properly. My graphics card fits perfectly.
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