Ethernet cable not detected by port

Hello,
The ethernet cable of my laptop is not being detected by port. Also the network adapter settings is not showing lan/ ethernet. This problem arose all of a sudden. I did recovery but no help. I reintalled Realtek LAn all in one window adapter but it did not istall. It gives an error that realtek controller was not found. What should i do now?

Hi @microbio ,
Thank you for visiting the HP Support Forums and Welcome. I have looked into your issue about your HP 15 b005DU Notebook and issues with the Ethernet connection. Here is a link to troubleshoot the Internet connections. The Ethernet cable should have a light flashing to show operation. Do you see the light on the cable?
Here is a document on Airplane mode.
If Airplane mode is on you cannot use your WiFi or Ethernet, so Airplane mode should off.
You can do a system restore. System restore will help if something automatically updated and did not go well on the Notebook.
When performing a System restore please note remove any and all USB devices. Disconnect all non-essential devices as they can cause issues.
I hope this helps.
Thanks.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

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Airport Self Assigned IP/No IP Address and Ethernet Cable not detected

My aiport status keeps changing to:
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How do I fix this?

Hello mijnnaamisteddy,
The article linked below details some useful information and troubleshooting steps that can help resolve issues with your Airport connection.
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Cheers,
Allen

Ethernet Cables not detected

Greetings all,
I have a late 2008 Macbook Pro Core 2 Duo that's been working flawlessly for quite a while. Last Thursday a sudden lightning storm came through the area and after some power fluctuations due to it, my ethernet port stopped detecting any connections. My sister's 2010 MBP was connected exactly the same way as I was, and her laptop isn't having any issues.
I've tried the Apple Hardware Test - running both the standard and thorough tests returns no problems with the system. System Profiler is showing two ethernet devices on my system - an Ethernet Controller named "ethernet" with a kext name of nvenet.kext and another network controller which I think is the Airport. I've reset the PRAM and SMC to no avail. I've tried different cables, but none of them have worked. The router my laptop is connected to is working flawlessly (I'm typing this on my laptop through the wifi). If my ethernet card were fried, wouldn't the Apple Hardware Test return something?
Message was edited by: Dante Adrian Delos Angeles

wouldn't the Apple Hardware Test return something?
Not necessarily. If it's fried, then there's nothing for AHT to detect, so it can't report anything wrong.

HT1941 trying to connect time apsule to macbook air with the ethernet cable in the WAN port the airport utility doesn't detect it

trying to connect time capsule to macbook air with the ethernet cable in the WAN port but the airport utility doesn't detect it but when i put it in the LAN one it does but it doesn't let me configure
any ideas?

Isn't it fun trying to do things without an ethernet cable direct to the computer.. Apple sell a usb to ethernet adapter cable fairly cheap.. makes life a lot easier having something to do hard connections.. or as hard as usb can manage.
Since you have to access the TC by wireless .. press and hold the reset button on the TC for about 10sec until front led flashes rapidly.. don't worry about the ethernet cable.. leave it disconnected.
Now click on the airport symbol and join another network. The TC should revert to its home name.. which will be a combo of Time Capsule and its MAC address. There is no wireless security and you can do the setup.

Ethernet cable not plugged in? But it's right there!

My MacBook Pro is insisting that the ethernet cable isn't plugged in. Now, I know the cable is good and the port on the switch is good because they work with my network printer. If I create a new location in Network Preferences (as suggested here http://ryanshelloworld.blogspot.com/2009/03/ethernet-cable-not-plugged-in.html) it works, but only at 10 Mbps (rather than gigabit) and when I unplug the cable and plug it back in it loses it again.
Any ideas on what to do next?

Try a new cable. Although it works on another device Macs are picky about the quality of the line.

"Ethernet Cable Not Connected" Huh?

I have a dual 10.3 450 G4 that I rarely connect to the internet. I kept getting the wrong date and time so I changed the battery. Now the monitor display keeps resetting to the wrong size and I keep getting the message the "Ethernet Cable not connected even though if I connect the cable to my laptop it works fine. I even tried restarting in OS 9, I repaired permissions still nothing. The system profiler tells me that the the extension is not loading. I can't find where to dump the preferences.
Any help?
Thanks
Enio

Hi,
Try re-setting the PRAM.
http://docs.info.apple.com/article.html?artnum=2238
or, PMU Reset
http://docs.info.apple.com/article.html?artnum=95037
Regards,
Dave

PRESTO GIGABIT PRO Ethernet Card not detected in Mac OS 10.5.8

Hello,
I am an IT Technician who is troubleshooting an issue with the network card on a PowerMac G5 tower. I have installed the PRESTO GIGABIT PRO Ethernet card (which states that it is compatible with Power Mac G5 (with PCI or PCI-x slots). After I install it, and plug an ethernet cable into the ethernet port on the card, it appears as if it is getting network activity since the LED lights begin to blink on the card. However, when I boot the G5 with Leopard 10.5.8, it does not see the network card in the system profiler under PCI cards. The only PCI card detected is a Broadcom 5702 in PCI slot 3. I have tried seating the card in different PCI slots but I still get the same result. Do you all have any ideas what may be causing this issue and a possible remedy for it? Thanks for any assistance that you can provide.

Hi Bruce, and a warm welcome to the forums!
I can't find the PCI card, just the PCIe card...
http://www.sonnettech.com/support/kb/kb.php?cat=164&expand=a3_a2b405&action=b490#b490
http://www.amazon.com/Presto-Gigabit-Ethernet-PCIe-Card/dp/B0017K6BR8
But on a hunch, System Preferences>Network, unlock the Lock if need be, see if you get New Port Detected, or click the little + icon and see if you can add Ethernet.
If it works & that is the Interface used for Internet, click on the little Gear icon>Set Service Order, drag Ethernet to the top.

My Airport Extreme just stopped working. The message says ethernet cable not plugged in, but it is. Cable modem works fine. Is this a common problem?

My 2-year-old Airport Extreme instantly stopped working last night and is flashing the status light. The problem description is that the ethernet cable is not plugged in... however, the ethernet cable is still plugged into the cable modem. I checked the modem by plugging directly into my laptop... it works fine. Is this a common problem? Is there anything I can try other than sending it in for warranty repair?

At this point, before sending it back, I would recommend that you do the following as a minimum:
Power-down the modem, AirPort base station, and computer(s).
Disconnect the AirPort base station from the Internet broadband modem.
While all of the devices are powered-down, perform a "factory default" reset on the base station. This will get it back to its "out-of-the-box" configuration and make setting it up much easier, especially if you use the "Assist me" process within the AirPort Utility. (ref: Resetting an AirPort Base Station or Time Capsule)
After the base station resets, go ahead and power it back down.
Reconnect the AirPort base station to the Internet broadband modem. For the Extreme and Time Capsule, be sure to connect the cable to the base station's WAN (circle-of-dots) port.
Power-up the modem; wait at least 10-15 minutes to allow it adequate time to initialize.
Power-up the AirPort base station; wait at least 5-10 minutes. Note: The AirPort's status light may continue to flash amber after it has intialized. That is because, there may be some additional configuration items necessary, like setting up wireless security, before the overall setup is completed to get a green status.
Power-up your computer(s).
In this basic configuration, the AirPort base station will broadcast an unsecured wireless network with a Network Name (SSID) of Apple Network NNNNNN. Network clients, connected to the base station either by wire or wireless, should now be able to access the Internet through the ISP's modem. Once Internet connectivity has been verified, you can use the AirPort Utility to configure the base station for wireless security and any other desired options. Please post back your results.

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Hi, everybody!
So, we've got a Late '06 iMac and we run Parallels to use Windows XP, since my wife's work stuff is not Mac-friendly. Our Ethernet port has not been waking from sleep properly for quite some time. The Network Pane just shows "Cable Not Connected." At first I thought it was my old router, but it's still happening with a three-month-old Time Capsule.
I took it to my local Genius Bar, and was told that this is a "known issue" with Parallels Desktop and Leopard. I uninstalled Parallels for the weekend and deleted its network devices from the pref. pane. The ethernet port worked for a couple of days, but then it was gone again last night.
Has anyone else run into this? Or heard about this "known issue?" I've not been able to find any information about it.
Thanks!
Jon

I'm seeing the same issue with Nov 2007 iMac. Parallels has never been installed on the machine. Has any progress been made in identifying a solution?

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First off, I am not a technical guru, so I need help. I have a WRT54G wireless router that I have been using for a couple years. Today, I came home and had no internet signal. I called my ISP (cable), and we reset the modem/router several times. I hard wired the modem to one of my systems, and I get a signal. We came to the conclusion that the ethernet connection is not working on my WRT54G. I am using the same ethernet cable to hard wire right now. Did my router take a dump on me or is there something else I can do?
Jason

Check the status of lights glowing on routers front panel when its connected to your computer and the modem.
You should have an solid green power light, there should be an light glowing on the port where you have connected your computer and also the internet light on router should be ON where you connect your modem, the light for WLAN should be ON as well.
If not then hard reset the router, by holding down the reset button for 1min then unplug the power cable of router first and then release reset button. Wait for 10 secs and plug in the power cable of router. See if you are getting proper lights on router.

Ethernet cable not plugged in

On a 2.16 GHz Intel core 2 duo, running OS 10.5.6 with 2 GB RAM, model "imac 5,1"
This is one of 10 identical machines in a university lab. No updates or changes of any kind have been implemented. One day, it stops accessing the Ethernet network. The Network preferences say "cable not plugged in" when it clearly is.
I did a restart, zapped PRAM, unplugged it and reset the whatever it is that resets, ran permission repairs, all to no avail.
When I swap cables with the machine next to it, the problem stays with this particular computer. In other words, the cable and the network port are not the problem.
I hauled it down to the nearest Genius Bar where, of course, the Ethernet mounted instantly. I took it home, plugged it into my cable modem, and still got the "cable is unplugged" message. This despite the fact that my home iMac is using that same cable for internet.
Brought it back to the lab, and tried plugging it into 3 different ports, using 3 different cables. "Cable is unplugged."
A Google search on the topic shows a fair number of people with the same problem, but no solutions. And I am worried because a 2nd computer started displaying the same symptoms. That one responded to my basic ministrations, but I'm concerned that this is an impending problem for all 10 of these machines.
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Aloha!
One the one of ten...
Try Resetting the SMC
Carolyn

Trying to connect, but network status says "Ethernet cable not plugged in"

I've got a G5, and I'm using a DSL modem (with 1 ethernet port) and a perfectly functional ethernet cable that is plugged in. Yet I can't connect to the internet, and according to the network status, the ethernet cable is not plugged in. Any help is appreciated.

I've got a G5, and I'm using a DSL modem (with 1
ethernet port) and a perfectly functional ethernet
cable that is plugged in. Yet I can't connect to the
internet, and according to the network status, the
ethernet cable is not plugged in. Any help is
appreciated.
There are only three things which could be wrong.
1 the cable is bad or not properly connected. (most probable)
2 the DSL device (what kind of DSL device, btw?) is bad or has a bad port or is not properly connected.
3 the Mac has a bad ethernet port, a bad ethernet controller chip, or is not properly connected.
I'd verify that the cable has a good connection, first thing. The best way is to unplug it (at both ends) and then plug it back in.
If no joy, I'd go over to a friend's place with Mac, cable, and DSL device.
I'd plug the Mac into the friend's local net, using the friend's cable; if that works, the problem isn't on the Mac. If it doesn't, I'd take the Mac over to a repair shop or would get a wireless card (if not installed already) and a wireless router and connect wirelessly. Be advised that the ethernet port on an iMac is built into the motherboard, and replacing/repairing that port will require a motherboard swap and will be expensive if you're not still under warranty or AppleCare.
If the Mac works with the friend's cable, replace that cable with yours. If it stops working, your cable is bad. Replace it. If it keeps working, your DSL device is bad. Replace it.

Ethernet Cable Not Found

I'm trying to connect my brand new iBook 1.33GHz to the internet via a Motorola Surfboard cable modem using an ethernet connection.
All wires and cables are hooked up as per the directions that came up with the set up kit, and the modem appears to be receiving transmission from the cable line as the proper lights are lit.
When I try installing the software I keep getting an error message that tells me that the computer cannot communicate with the cable modem. I tried going into my Network settings to specifically put in that it is to look for the ethernet connection first, it tells me that there is no ethernet cable connected to the computer even though it is connected.
I had been using AOL for a week or two while waiting for the cable modem to arrive. I uninstalled it before attempting to configure the cable modem, but is it possible that it is causing the problems with the ethernet now?
I'm really at a loss, and the cable start up kit is no help at all. All it keeps telling me it to be sure that I have set up my connections according to their little picture, which they are.
Any help or advice would be greatly appreciated.

It seems to be a problem with the cable modem itself. I worked through the same steps with Apple Support today, with no change in the results. They suggested I take my iBook over to my local CompUSA and have them see if they could get a ethernet connection. Ran it over there, and they had no problems getting a connection via the ethernet port.
My service provider tried a few things on their end. They are able to communicate with the modem, but it still won't communicate with my computer. They are going to swap it out for me,so hopefully that will take care of the problem.

Internet via ethernet cable not recognised: just wireless

Hi -
I have an ethernet cable that supplies my internet, but Windows Vista (Home Premium) will only let me access a Wireless connection (of which I don't have one!).
Can anybody help?
Thanks!

anch66,
Could you please provide a little more information. Who is your Internet Service Provider (ISP) and what are their minimum system requirements?
Our G3 that connected to the web for years with OS 8.1 no longer connects because we changed providers. Juno requires OS X to load pages. We can connect to the server with the right settings but then it does nothing to load a page because the minimum OS requirements are not met.
Gmail is similar. It requires OS X to set up an account. I had my son set up the account on his G5 and then we could access it with OS 8.1 on the G3. The devil is in the details.
Do you have a second hard drive or a partition on your drive to give you a backup if the upgrade does not go well. Buying an install CD would give you a little better upgrade path.
Ji˜m

Bluberry iMac Ethernet Cable Not Plugged in???

I am trying to connect a slot loading 350 mhz imac to the internet through the built-in ethernet for a friend that needs it, but the network status pane (OSX.3 Panther) keeps saying the ethernet cable is not plugged in. I've tried several different Cat 5 ethernet cables and it still says this, so we can't connect to the isp (with cable modem). It also says the internal modem is not working, I get the red light next to it and the built-in ethernet buttons in Network status. I've tried direct connections to two different external cable modems, and three different ethernet cables, but I think the problem is a software issue that needs correcting.
I've tried zapping the PRAM, and resetting the nv-ram, but to no avail (as suggested by other posts I've come across). I ran Tech Tool 4 on it and the Network test PASSED.
Is there something I can do in Preferences or terminal to switch these back on so the network can see the modem and built-in ethernet? Any ideas or suggestions would be welcome!!
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iMac 350 mhz Mac OS X (10.3.2)

HI Klaus
Thanks for the reply. The router seems to be working, since when I connect it to my laptop (old iBook) via ethernet cable, no problems getting internet.
I also read that to test the card and/or cable I should connect the 2 computers together and turn on file sharing. I did this and was not able to share files. I don't know if that points to the ethernet card/cable or to incompetence on my part...
But I also tried file sharing via Airport card and that worked fine, so I think I have file sharing set up properly.

Ethernet cable not detected by port

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