Unplugging network cable wakes sleeping MacBookPro

Is there anyway to stop my MBP from waking when I unplug a network cable? This happens even with the display shut. This is very annoying, as it happens everytime I am packing up my MBP to take it somewhere. Of course, I can avoid this by unplugging the network capble before putting the computer to sleep. But it's easy to forget to do this. Moreover, since the "sleep" light is on even when the computer is on and plugged into an external display with the MBP lid shut (which is how I use it), it is not easy to tell if the MBP is sleeping or not (the only difference being that the light pulses when the MBP is asleep - and this can be difficult to see in a brightly lit room)

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Network Cable unplugged

I have BT Total Broadband Anywhere Home Hub 2. I have used it successfully on my desktop pc and wirelessly with my laptop. However I went away for 2 months and was unable to use either (everything was switched off whilst away). On my return the laptop can't connect at all, I just get two grey monitors with a red X and the information 'A Network Cable is unplugged'. I bought a netbook when away and am having the same problem with that now.
On the laptop that worked before, on my Network Connections it is showing as follows:
Local Area Connection 2
Network cable unplugged
Broadcom 440 x 10/100 Integrated Controller
1394 Connection 2
Connected
1394 Net Adapter #2
I have tried connecting to the Hub with an ethernet cable without success and when I run the Hub Manager on the laptop it just says it can't connect with the hub. When I run the Hub Manager on my desktop it says there is no wireless device detected.
A check on the laptops device manager hardware shows everything as working properly, but when I try the Wireless WLAN configuration utility in Control Panel it tells me there are currently no wireless adapters available and enabled.
I am getting desperate as I cannot sit at the desktop for any length of time and need the laptop, please can anyone help?

chunkleberry wrote:
I have BT Total Broadband Anywhere Home Hub 2. I have used it successfully on my desktop pc and wirelessly with my laptop. However I went away for 2 months and was unable to use either (everything was switched off whilst away). On my return the laptop can't connect at all, I just get two grey monitors with a red X and the information 'A Network Cable is unplugged'. I bought a netbook when away and am having the same problem with that now.
On the laptop that worked before, on my Network Connections it is showing as follows:
Local Area Connection 2
Network cable unplugged
Broadcom 440 x 10/100 Integrated Controller
1394 Connection 2
Connected
1394 Net Adapter #2
I have tried connecting to the Hub with an ethernet cable without success and when I run the Hub Manager on the laptop it just says it can't connect with the hub. When I run the Hub Manager on my desktop it says there is no wireless device detected.
A check on the laptops device manager hardware shows everything as working properly, but when I try the Wireless WLAN configuration utility in Control Panel it tells me there are currently no wireless adapters available and enabled.
I am getting desperate as I cannot sit at the desktop for any length of time and need the laptop, please can anyone help?
Hi, the devices you have mentioned are the 'wired' connections. On most laptops, there are switched you can press to turn on and off wireless, is it posisble this has been done?
You can check to see if 'wireless network' appears by selecting the Start Button, then click on Control Panel and open, you should see 'Network' (doing this by memory) and open that up, you will see Wired Lan and Wireless Lan.
If Wireless Lan is disabled, you can right click on wireless lan and enable it, that should work.
CG
CG Over An Out

Network Cable is Unplugged

Hello,
I buy brand new lenovo G575 laptop,
I install windows xp,
Can't connect on internet show me ''Network Cable is Unplugged'' ?
General when i try install some software ''setup.exe'' show me some error ''Can not find setup file'' ?
Thanks.

hi new89z,
Welcome to the Forums.
The ''Network Cable is Unplugged'' message usually appears if you don't have any ethernet cable attached to the laptop. If you connect via WiFi, you can hide the icon by following this microsoft article.
http://support.microsoft.com/kb/902974
As for installing softwares, are you having the issue after extracting the files? Check this microsoft article:
http://support.microsoft.com/kb/902974
Let me know your findings,
neokenchi
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Equium M50 will not recognise the LAN port - error: Network Cable unplugged

I own a Toshiba Equium M50 and have problems with the Marvell Yukon 88E8036 PCI-E Fast Ethernet Controller.
I used to connect via an 'ADDON' Modem/ADSL Switch and had no problems. I then replaced the ADDON with a 'NETGEAR' DG834G ADSL Modem/Router to gain the wireless port, and since then my machine will not recognise the LAN port. <error: Network Cable unplugged>.
I know that the cables are OK as I used them with other laptops and had no trouble. I can also plug in a PCI card to connect without any problems. It looks to me as if the Marvell Yukon 88E8036 PCI-E Fast Ethernet Controller has a problem with the netgear Modem/Router.
Anyone out there with a similar experience and some advice/suggestions?
PLEASE

Hi
For me it doesnt show like a LAN card problem but your router is a problem.
Check the device manager if the LAN card was properly recognized. If there are no yellow exclamation marks so everything is ok!
You can try to delete the LAN card from the device manager and after new reboot install the LAN driver again.
The issue has stared after installing or connecting the new Netgear modem router.
Therefore I would recommend to checking firstly the settings or to update the firmware on this router.
I have found additionally these useful websites
http://compnetworking.about.com/od/windowsnetworking/f/cableunplugged.htm
http://www.experts-exchange.com/Networking/Broadband/DSL_Cable/Q_20381405.html

Iphone 5 Apple Mobile Device Ethernet comes up as "Network cable unplugged".

I've Windows 8 64-bit and want to use the iPhone 5 as my main wireless USB dongle and I've had this problem since Windows 7 where, no matter what I do, the Apple Mobile Device Ethernet comes up as "Network cable unplugged".
I've unplugged and plugged it back in, reinstalled iTunes, reset the network settings on the phone, made sure everythings up to date and reset the service in Windows to no avail.

Yes My personal hot spot is on in cellular data on and i have a data plan that allow tethering. that problem is start 4 days before. My iphone is do this job very well few days before.

Connecting Windows XP to Airport Error: "Network Cable Unplugged"

Situation: Having bought a new computer I gave my old Airport Extreme (a model I bought about 4-5 years ago; one of the white pointy dome ones) to a friend, and attempted to set up their network. My goal was to connect the apple computers (one 2.16GHz iMac and a titanium macbook) to a wireless connection, and then connect their old wireless-less PC with WIndows XP to the airport with an ethernet cable.
Problem: The wireless network works fine for the Macs, but when I connect the Airport to the PC with the ethernet cable it says "Network Cable Unplugged", and doesn't connect to the internet. I have swapped the cables, so I know that they're fine, and before I attempted all this the computer was corrected straight to the modem through the same port and worked fine, so it's not the port, either.
Also, I don't think it's the ethernet port on the airport, as I was using it last week with an iMac and it was working fine. But on this I'm not entirely sure. Right now I have the cable from the modem going to the Airport port with the broken-dot circle, and the cable to the pc coming out of the (only other) ethernet port (with the sign <->). If I swap the ports used (with the modem going into the <-> port) the PC works, but the wireless drops out. So that's no good.
The PC is using Windows XP, which is quite foreign to me, so I don't know the tricks. I haven't found any other threads on here with a similar problem, so if anyone could give me some advice as to how to fix this it would be greatly appreciated!

By a "128 bit password," I assume that you mean that you have the AirPort Express (AX) set with WEP encryption...correct? ...and that the Mac is connecting to the Internet without any problems...correct?
If you turn off encryption, can the PC access the Internet thru the AX?

OS 4.1 Tethering with windows "network cable unplugged"

wow, this just happened to me. Tethering was working for me yesterday. After my update to 4.1 (not sure if this has anything to do with it) it no longer works. The tethering network connection is there in my network connections, but it shows as disconnected. I run windows 7 64 bit.
Just to rule out things, I tried it on my work laptop which runs windows XP.
I also just tried it out on my girlfriends macbook pro which runs OS X (10.4)
freaky....

i uninstalled itunes on my windows 7 PC, restarded and reinstalled it.
tethering worked ONLY for the first time. after that it's the same problem, network cable is unplugged.

Satellite A100-512 - Message appears - Network cable unplugged

My laptop model is Satellite A100-512 bought in Germany, am now in India, whenever i connect a LAN cable i get the status as "Network cable unplugged", the system shows the ethernet is working fine! when i looked into the device properties...what could be wrong!!!

Hi
Im not sure why this happen but it seems this has something to do with the OS settings!
I found this very useful MS knowledge base article which could help!
How to troubleshoot the following message in Windows XP: "A network cable is unplugged"
Please check it and try the different solution advices!

Getting a strange error message - network cable unplugged (on a wireless router?)

I have a Linksysy wireless WRT54G ROUTER that is connected to a Dell PC desktop and a Toshiba laptop. I got everything hooked up just fine and everything worked great for 2 months and then 2 days ago I started getting an error messgae saying that a "network cable was unplugged and the wireless connection was lost." I can no longer get Internet connections or connect to Outlook. Anyone know why this would happen and MORE IMPORTANTLY, how to fix this?? The connection to the Dell still works interestingly and the "link" indicator on the cable modem is blinking on and off. Please help!

well the first thing that you should do, if you have not done this already is check the network cable on the computer with the issue and make sure that it is snapped in securely. If it is try to connect again. If at this time it still states that a network cable is unplugged, try another cable and see what that does for you. please get back to us and let us know if it still states that the network cable is unpluged.
Ttech

Toshiba laptop (C55-B5302) has "network cable unplugged" error message repeatedly. Why?

I recent purchased Toshiba Laptop running Windows 8.1 at local Best buy. The models number is C55-B5302.
When connected via ethernet cable, I keep seeing an error message in network adapter settings saying "network cable unplugged".
However, this "unplugged" message switches back and forth repeadedly from "connected" when I am not doing anything to the cable.
My internet is very sporadic because of this. I replaced the cable but still same error.
Any idea on how I can resolve the issue?
Please help. Thanks.
Solved!
Go to Solution.

Try downloading and installing the latest LAN driver:
RealTek LAN Driver File: tc40213700b.exe DOWNLOAD Version: 8.024.1218.2013 Posted Date: 2014-03-13
If that doesn't fix it, it could be faulty. You might want to exchange it.
- Peter

Linksys Network Everywhere Model NH1005 - Network Cable Unplugged / Blinking Lights

I just replaced a computer on our network. I connected the network cable to Port 2 on the hub, and it blinks. I switched ports to make sure it wasn't a bad port, but continue to get the blinking lights. On the computer, it's telling me the network cable is unplugged.
Any ideas?

Make sure you are using a patch cable and not a crossover, the easiest way to tell is to compare the ends of the cable side by side and make sure the colors are in the same order.

MOVED: MSI Neo2-P network cable unplugged

This topic has been moved to Off-Topic Technical.
https://forum-en.msi.com/index.php?topic=96663.0

Please posts more of your rig and list in details of your PSU and Bios Revision and put it in your Signature!! Is your network cabling ok or not? Loosing? Tried to unplugged the cable and if you're using a switch hub tried to changed other ports.

Satellite M100-165: message Network Cable Unplugged appears

My NEW notebook TOSHIBA M100-165 /model PSMA1E/ with network adapter Intel 10/100 VM Network Adapter have big problem when connected to my office network!!!
So many collisions I can see on my 3COM HUB /model TP800/. But this HUB is perfectly working with other computers in my office /another 5 computers works perfect on this HUB!
When I tried to connect my notebook directly to switch on the floor /model of switch is CISCO Catalyst 3500 series XL/ the message "Network Cable Unplugged" appears.
Only for testing I tried another notebook TOSHIBA in our network but with network adapter Intel 10/100 VE Network Adapter. And this notebook works perfectly.
I hope You can solve my problem as soon as You can!
Thanks in advance!
Best regards!
Ivo Vachkov

Hi
I hope that your unit has factory settings and the LAN card is installed and listed properly in device manager. Please check as first if the card is also enabled and configured properly.
Try also to talk with network administrator in your company. He can check all settings and be sure that everything is ok.

E4200 / Windows 7 Ultimate - Network cable unplugged

Yesterday two of four computers (both windows 7) stopped connecting to the Linksys E4200 router after several months of continued connectivity for one and the other for about 30 days. Within the Network Connections window the Local Area Connection says "Network Cable Unplugged".
I am using E4200 Firmware version 1.0.0.1. - Firmware version yesterday when problem occurred was 1.0.0.0, updated based on Linksys Forum suggestions. I continued the updating to version 1.0.0.2, problem remains. I have since down graded firmware back to 1.0.0.1 based on the majority of the posts this version seems to be the most promising.
I have powered down, removed mother board battery (pain in the ### to get to) reset bios and still now change in Local Area Connection.
When I restart the computers I do notice an attempt by the router to connect to the PC but it does not go any further than that.
I have switched out the cables and tested the old ones on cable testers, everything is fine.
I have also tried the DhcpConnEnableBcastFlagToggle fix outlined by "smillio" and it has not worked for me.
Both computers are experiencing the same exact problem - Both Windows 7.
I have three other devices connected to the E4200 router which have not experienced any connectivity issues, HP wireless printer (connected wirelessly), XP computer using cat5 and driod phone connected through wireless connection.
My best guess at this point is that the router went to renew the leased connections and both Window 7 machines no longer connect.
Please help, going into another day of limited work productivity.
-Kit

Try to update the newest drivers of the LAN card installed... For updating the drivers you can follow the procedure:
# Click on Start --> All programs --> Accessories --> Command Prompt….Run and in the run box type "devmgmt.msc" and click Ok...
# Device manager window will appear and in that check for the LAN adapter.. Right-click Adapter that you want to update and click Update Driver Software…
# A window will appear asking “How do you want to search for the driver software?".. Click “Search Automatic"...
# Then click next to update...
Change the Link Speed and Duplex settings to use "100 Mbps Full Duplex" or "10 Mbps Full Duplex" instead of Auto Detect.
You can follow the procedure for Reducing the Speed of the LAN Cards
On the Windows “Start” button, select "Control Panel”
In “Control Panel”, select “Network and Sharing Center” then click on change Adapter Settings..
Right-click on the “Local Area Connection” and select “Properties” from the bottom of the menu:
This will bring up the “Local Area Connection Properties” window. Select “Configure”
At the next window, select the “Advanced” tab,
under “Property” select “Media Type”, and you will see a value list to pick
“10 Mb, Half Duplex”, “100 Mb, Full Duplex”, or "Auto Detect".

Datasocket error when network cable unplugged

Hi,
I'm having problems with my datasockets. I have applications running on multiple computers, which publish data to a datasocket on the localhost. Whenever we unplug a network cable, or the network goes down, the datasocket write function reports the following error code: -2147014843 in Datasocket Write.
I can't find any information about this datasocket error code. Can anyone give me advice on how to find more information about this error code?
The result is that whenever there is a network issue, we need to go and resolve it, then we need to log onto each computer (25+) to get the datasockets working again.
Also interesting to note is this problem has only presented itself since upgrading the computers from NT to Win2k & WinXP.
Thanks for any help that can be given.
Slade Squire

Hi again,
Just in case anybody else looks here, and have a similar problem...
The error code we saw was related to the networking functions of Windows. In particular, the reason we did not see this problem in Windows NT, but it started appearing in 2000/XP, is the media sense functionality of Windows 2000/XP. In 2000/XP, if there is no connection detected, the OS dumps the IP stack, and with it, the IP address. As a result, when we try to write to a datasocket on the computers IP address, Windows returns an error, since there is no IP address anymore.
To resolve this issue, we turned off Media Sense on the affected computers. We followed the instructions on this page:
http://www.windowsnetworking.com/articles_tutorials/Disable-Media-Sense-TCPIP-Windows-XP.html
Now, when the network drops out, we keep the same IP address, and so the datasocket can continue to write to the local computer, without any problems.
Regards,
Slade Squire

Unplugging network cable wakes sleeping MacBookPro

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