Realtek’s network controller deep sleep mode issue

As I’ve noticed a fair bit of visitors interested in my post of Windows 7 and Network Controller Deep Sleep Mode problem, I thought I should write a “clean” version of the post (basically the fix for the problem minus my ramblings 🙂 )

The problem starts when the computer goes into sleep/standby mode, a few components of the PC including the network controller (or adapter) are turned off. The issue occurs when the PC wakes up and power to everything is restored. The network controller doesn’t come on and as per Realtek installation message:

The Realtek Network Adapter/Controller was not found.
If Deep Sleep Mode enabled Please Plug the Cable

The best fix is to reset the motherboard and the best way to reset your motherboard is to remove your RAM chips. Leave them out for some time (in my case 30 seconds) and put them back in. And that is all! The motherboard will be reset and the network controller will come out of deep sleep mode!

Note: If this doesn’t work, leave the RAM out for good 10 minutes. Leaving the RAM out longer has worked for some people (see comments below).

Note 2: For laptops, removing the battery for 5-10 minutes has worked for a few.

Note 3: If nothing works, turn off the system and plug in a external hard drive (or a USB thumb drive) and then turn the computer on. Once on the desktop, Windows will try to install the external hardware. This, in some cases, has worked and wakes up the network controller.

Note 4: Some people have reported that “Loading Default Settings” in the BIOS solves the issue as well. You will need to go into the BIOS at start up by pressing the Delete key (can be F2 or some other, please check the message at the start of the screen). Once in BIOS, you can press F10 to “Load Default Settings” (If you don’t see that, look for a button saying that. It is usually around the “Save & Exit” Button). Once loaded, hit “Save & Exit”. This will restart your computer and some people have reported this fixes the issue.

Once you have it working, to make sure the network controller doesn’t go into sleep mode again, try this:

  1. Open Device Manager by:
    1. Go to Start
    2. Click Control Panel
    3. Choose System and Security
    4. Click Device Manager (under System)
  2. Open Network Controller properties by:
    1. Double-click Network adapters to expand it
    2. Double-click the Realtek Network Controller
  3. Turn off Deep Sleep mode by:
    1. Choose the Power Management tab
    2. Untick “Allow the computer to turn off this device to save power”

Doing this will make sure the network controller is not put in to sleep mode till someone fixes the issue!

Finally, if something does work you please post the Motherboard/Laptop model and the method that worked to help others!

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  • petru dolca

    driver its not good download other driver

  • petru dolca


  • GuitarHeroPro

    It Works again! 🙂 Problem Solved!!

    The trick was going in to BIOS and select “disabled” Save power Lan option.

    Laptop Configuration: Hp dv5 21XX , Core i5, 4gb, 500HD.

    Thank you!!


    I have a HP g6-2132tx laptop , and i hav this same problem. network adapter is listed in device manager , but no lights on ports. there is nowhere option in BIOS regarding LAN.

  • ASUS M5A99FX PRO R2.0 ATX AMD Motherboard with UEFI BIOS:

    Method worked perfectly. Reseated my RAM cards and turned off that damn power save option. Thanks for the post!

  • Chris Groves

    Same problem, I’ve tried every tip listed on the comments and of course, the main post.  Help… will break computer with bat in near future otherwise…  (keep checking for my youtube post of the smashing satisfaction)

  • joe256123

    just pulled out my memory as it says for 5 minutes….and it worked like a charm !!!
    thank you very much :))
    Giga-Byte MB usb3-p55
    Nic – realtek 8169

  • love_guru

    I just want to post that Note 2 worked on the Toshiba NB305-N600 netbook. I removed the RAM and waited 10 minutes, reinstalled the RAM, and reinstalled the driver from the Toshiba support website.

  • ArunKNambiar

    I had the same problem, Its solved,. I just removed the power cable and then battery. Then pressed the power botton to release all static power in laptop. Then again i put the battery alone not power. then switched on. It worked   fine.
    dont forget to do this also
    Open Device Manager by:
    Go to StartClick Control PanelChoose System and SecurityClick Device Manager (under System)

    Open Network Controller properties by:
    Double-click Network adapters to expand itDouble-click the Realtek Network Controller

    Turn off Deep Sleep mode by:
    Choose the Power Management tab
    Untick “Allow the computer to turn off this device to save power”



  • FOR THE MANY HAVING THIS ISSUE: *******************************************Update NOV 2012- KNOWN FIX FOR ISSUE


    Ok so if you have
    * taken out the battery (cmos too if you have one.)
    *you have taken out the RAM for an hour (or more) *.
    *have reformatted your system
    *tried “flashing ” the BIOS
    *unistalling/reinstalling adptrs
    *diagnosed ram
    *check power state settings
    *updated drivers thru dev mgr
    and you still are unable to get the system to detect a network adptr AND you recieve a message “if your pc is in deep sleep, please plug the cable in”…..

     I did notice how my computer got into deep sleep mode. I made a BIOS  settings change by disabling an HD Password that was set by my newphew. Upon exit…i must have hit “load set up defaults” thats when i discovered the loss of my nic components and was unable to find a netwrok adptr. i also got the
    “your computer is in deep sleep mode..please plug in the cable ….”   I KNEW THIS WAS  NOT A HARDWARE ISSUE…I TOOK THIS COMPUTER APART SEVERAL TIMES.  i ran MEM-TEST to check for RAM errors, I ran HD Tune-pro to see if i had issues with the HD. i  clean installed windows multiple times and also flashed my BIOS. I knew all the more AFTER I DID BUY A NEW NIC CARD still wasnt found ….
     TRY THIS*****

    Go into your BIOS   (to those that dont know turn on pc/or restart and immendiatley key “f2” go to adavnced/. ( every build is diff…try to use similar paths)
    go to each tab and hit “load defualts”
    then when you go to exit the bios…MAKE SURE YOU HIT “Load set up defualts” (if it says that or whatever” regardless of its settings” go back into windows (let pc restart)……see if a baloon at bottom right hand portion of your screen says “loading/installing/found new hardware” if you see this…we solved your issue.
    now if that did nt do it….ONCE MORE…go back into the BIOS…find where the settings for either “intergrated nic” or “on-board LAN” ENSURE THEY ARE “ENABLED”. That should do it …EXIT AND SAVE CHANGES…LET pc reboot…it should have worked. that is all the info i can offer. hope it helps.

    • Fd

      Thanks alot JONathon, i have same model computer , and had same problem , so i did as u say and “load defaults ” it worked thanksssssss

  • Sanjoy Podder

    no need to do all the fucking thing. just boot ur pc or laptop from lan. all will be done. enjoy.

    • or reset & load defaults on exit from BIOS

    • First of all, there’s no need to swear. Second, people with one computer will have a somewhat difficult time booting from LAN. Thank you for your contribution.

    • feltso

      fuck yaaa, the swearer knows whats up!!!

  • Mine was already set correctly and I continue to have this problem.

  • I built this computer almost 5 years ago and have never had a problem with the network adapter running under Vista or Ubuntu. Only since I installed Windows 7 have I had a problem. 

    Fortunately, I’m always able to bring the network adapter back by shutting down and unplugging the power cord for a couple of minutes; no RAM or battery removal required. Unfortunately, changing the power management setting does not resolve the issue, and the network adapter disappears every single time I shut down the computer. 

    Here’s what I have to do:

    1. Start the computer — see that network adapter is missing from Device Manager.

    2. Shut down the computer, disconnect the power cable for a couple of minutes.

    3. Boot. Network adapter is back in Device Manager. It say’s it’s operating normally, but it isn’t. When I try to enable it, it then says it can’t be started (Code 10).

    4. Uninstall network adapter.

    5. Shut down. Unplug power cord for a couple of minutes.

    6. Restart. System reinstalls network adapter. 

    Most of the time this gets me back on the network. Sometimes I have to boot once more.This happens every single time I power down the computer.

    I’ve installed the latest driver from Biostar. I’ve fussed with the driver settings. I’ve checked the BIOS settings. I have not flashed my BIOS. The fact that it’s fine in everything but Win 7 makes me feel like it’s not a BIOS issue.

  • Lou Butler

    I downloaded and installed a legitimate Win 7 .iso from Digital River that must have been corrupted because it didn’t install the Realtek Ethernet driver and I ended up with this “Deep Sleep” message when I tried to manually install the driver.

    I googled to this site and then tried all the hardware tricks listed here and nothing worked.

    After that, I bought the Win 8 upgrade and installed it and all the drivers were there and everything worked fine.

    After that, I reinstalled the Win 7 .iso on a separate partition, and again, there was no Realtek driver installed in Win 7.

    So, in my case, I’m now sure that my missing Realtek Ethernet driver was a software problem and not a hardware problem.

  • I had this issue then removed ram and pc worked for awhile, now it’s back sometimes when pc goes into stand by/ sleep when i start up again network doesn’t ork i have to remove network cable restart and run network trubbleshooter and then plug cable back in again..

    I have bough a new motherboard since i thought this was my MB making the problem.. feel kinda silly now and maybe i send it back instead..

  • dottronik

    Hey guys, I have a Dell Studio XPS 435 machine. A lightning and thunderstorm in my residential area had knocked the power out. I am very careful about leaving my machine on during the rain or thunderstorms. I received this message when I followed the step by step instruction wizard to install network/ethernet driver. This popped up:

    The RealTek Network Adapter/Controller was not found. If Deep Sleep Mode enabled Please Plug the Cable

    I followed these steps:
    The best fix is to reset the motherboard and the best way to reset
    your motherboard is to remove your RAM chips. Leave them out for some
    time (in my case 30 seconds) and put them back in. And that is all! The
    motherboard will be reset and the network controller will come out of
    deep sleep mode!

    Awesome, up and running, everything is good to go. Online just fine.

    Next Open Device Manager by:

    Go to StartClick Control PanelChoose System and SecurityClick Device Manager (under System)

    Open Network Controller properties by:
    Double-click Network adapters to expand itDouble-click the Realtek Network Controller

    Turn off Deep Sleep mode by:
    Choose the Power Management tab
    Untick “Allow the computer to turn off this device to save power”

    Doing this will make sure the network controller is not put in to sleep mode till someone fixes the issue!

    Thank you, saved me some dollars as my next option was to replace a network adapter card.

  • sumanth

    Here I have solved it guys..

    step 1: When u restart ur computer run bios.
    step 2: Go to advanced.
    step 3: change Integrated NIC to enabled.
    Step 4: save the changes by exiting.
    Dats it guys nw yuo restart d system or laptop..
    It really worked for me….

    • jayz

      there are many advance options here in bios—-what exactly the advance option to be entered???

  • vietro

    thanks dude…its worked…..
    before i was tired because i think this problem maybe not have been resolved….but when i follow the above steps and WOW…its true….its worked,,
    sometimes when it happen again…I do not need to be hard to find on the internet again,,, I stay working on his own again

    thank u very much adeel ejaz 😀

  • Mikael Dennis

    it worked for me Thanks! just do the following steps.

  • Ognyan Dachev

    hey 🙂 I have the same problem but the steps that you posted didn’t work for me …. no driver can make the Realtek Lan work all of them say that it is in deep sleep mode… so my Laptop is – HP Pavilion G6 2303eu … The lan controller is Realtek RTL1839/810x PCi Fast Enthernet Controller, and the OS is windows 7 64bit.

    • prabu

      remove bios bty ,ram ,bios jumper wait up to 10 mts then re instal

  • Mate Rinkachiku Simovic

    The only thing that worked for me, after trying all else, was doing windows 8 clean install

  • Pommeskuchen

    Hey guys!
    I’ve got the same Problem, I don’t know what to do anymore..

    I’ve got this setup:
    ASUS P8H67-M PRO
    Corsair Venegance 8 GB 1333MHz
    XfX R7970 Double Disspasion
    Intel i5-2400 (third gen)

    Tried a lot with BIOS and Network Drivers .. The Mainboard does not even recognize any other PCIe Lan-Cards ..

    Maybe some Help? Ah, OS: Win 8.1 64BIT Pro.

  • prabu

    1.remove ram ,bios bty ,bios jumper wait up to 15 minuts then re install
    2.pc make a first boot as lan boot
    3.if not work call me prabhu BE mob 8505074464

  • prabu

    boot from lan first .the lan port will enabled

  • Jayfferson Alas

    how about for the hp pavillion dv6 2171ee same problem network controller is in deep sleep mode

  • 2. Open Network Controller properties by:

    1. Double-click Network adapters to expand it
    2. Double-click the Realtek Network Controller

    Click how and where, if the card is in deep sleep and appears in Device Manager?

  • Kat

    Thank You! Worked perfectly with Gigabyte GA-F2A55M-HD2 Motherboard!

  • Aaron Rogers

    I have A Realtek adapter and run Win 8.1 on my Dell desktop. My WOL worked about once and then stopped. What seemed to happen is that the network card would stay powered on in sleep mode but would lose its connection to the router upon sleep. After doing all of the above (BIOS settings and power mgmt settings) I found that THIS WORKED:
    1) Go to settings for realtek network adapter in Device Manager 2) Go to Advanced Tab 3) Go to “WOL & Shutdown Link Speed” and set to “Not Speed Down”. This seems to prevent the network card from losing the lease with my router when computer enters sleep. (You can check this by looking at the cards yellow LED blinker or my checking your router for connected devices).

  • Murdoc950

    Lost power during a storm, as a result my computer shut down as well.. after turnning hte pc on, i noticed i had no realtek, network adapter. checking into device management it isn’t there either, i know sometimes they can be hidden but not in this case. After trying to install the updated version of Realtek Driver it says im in deep sleep mode.

    following most tips and advicei I’ve removed ram, battery, left it outside for several hours (overnight) and it still hasn’t come back.

    Ive also gone through my bios, and checked that lan, on board lan is enabled and this is even after putting the settings back to default.

    furthermore, ive tried booting up with an external hd, and usb..

    Funny though, right as i start the comp up and get into windows although it says i have no internet connection and or adaptor i have a 30 second window to internet….
    then poof, all gone…

    everyone seems to be getting lucky from reading these comments! any other ideas, or should i just go ahead and get a new board?

    M4A87TD EVO,

  • fffff

    Its work for me, Thank you !

  • Tina Harmon

    Thank you for posting this. I have an Emachine Desktop EL1852G-52w that takes up to 20 minutes to wake up, after changing the windows sleep and power settings. Everything but the network/internet worked immediately, so I knew it had to be something to do with the NIC and just could not find that setting on my own. Formatted and reinstalled Windows 7 Premium and installed latest drivers 2 weeks ago and this has driven me nuts since then!

  • yhel makaveli

    can someone please help, im having the same problem. i’ve tried all instructions step by step but still nothing works. please help!! .. My motherboard is MSI H81M-P33.

  • Slidebarrr

    I have the same issue that Network Controller was not found… cause of deep sleep mode.. thanks to God i found this article …Mainboard ASUS and Op.System is Windows 7 64 bit. I pull RAM card out, wait 30 sec. and then fix them. Thats all…. THANKS SO MUCHHHHH

  • RickEagle

    Power off your completely (total shut down). Remove all cables. You can leave the power cable attached. Wait 5 minutes. Next, re-plug a cable into every port (Ethernet, USB and SD card reader). Now power up your computer. After the re-start hopefully your computer will now wake the Ethernet Family Controller and you are back in business without messing with the Bios or Motherboard. Good Luck. !!!

  • ieraaa

    I opened the device manager and updated all “other devices” via WIFI. The WLAN drivers got installed this way. Its the most easy fix I’ve read so far

  • Aarif Muhammad

    Note 1 and 3 helped me. Jazak Allah brother.

  • Akhil Sankar

    thankz to you i just removed my ram , kept it for 10 mins and placed it back .. it worked /….//// thank you so much !!!

  • chrisvcomstock

    this guy right here has the right idea for sure. got rid of the deep sleep thing. now onto fixing the adapter yellow question mark thing. thanks a mill man!

  • Capnblinski

    My fix was first save the realtek drivers from here: — then sp 1 and 2 from here: — along with a good cleaning before reinstalling. But who knows what really did the trick. Never saw such a cluster**** pc problem in my life! Good luck!

  • J.H. Steedley

    I’ve tried all the hacks here, except resetting the BIOS to ‘Defaults’ & pulling the mboard’s batt., [not that I’m above those, just haven’t got to them yet] STILL no joy.
    Here’s the thing; Had a storm on 6/12, lightning took out the power; When it came back, I had this problem.
    So I’m wondering; IF my mobo *is* damaged,how can I tell?
    At last I found the page of the great Adeel Ejaz, so I KNOW this is a thing,
    but how to distinguish between “Realtek Sleeping Sickness” & ‘It’s broke, buy a new 1″?
    ‘Cause this is getting old, & I still can’t find my USB wireless adapter,
    homebuilt box, ASUS M4A88T-M/USB3, AMD Athlon II X4 640, & ASUS EAH 6450.
    MTIA, if anyone can help,

    • Sadly, I think it might be a motherboard issue. A simple search of ‘lighting strike ethernet port’ should give you some similar stories. You can get an ethernet PCI card or a USB adapter

      • Jon Steedley

        Hello, Adeel Ejaz.
        Many thanks for your kind response.
        Yeah, that’s what I decided, so I replaced the mobo yesterday,
        & much better, thank you.
        I was confused by the pages I found that specifically mentioned “reinstalled Windows,” since I had just done exactly that.
        Replaced the router, too, since apparently it was getting flakey also.
        Thanks again for taking time to answer.

        Have a GREAT day, Neighbor!

  • Alexandre Michel

    I did what you said and my adapter is working again. Thanks!

  • perfect

    Hello, thanks for this advice.
    On my laptop HP 4520s helped to take out RAM, unplug battery and leave for an hour. Then push the start button to discharge capacitors on MB and then put everything back. The ethernet was working again! Great!

  • X-BASS

    Same problem here:

    Gigabyte GA-H55M-USB3, with a Realtek RTL8111E on board.
    Using Windows 10.

    Solution: Install, latest driver from Realtek’s website and untick the “Allow the computer to turn off this device to save power” checkbox in Device Manager.

    It solved the issue, even on reboot or suspend.

    Thanks for pointing in the right way Adeel Ejaz.

  • Frevan48

    i have a win 7 asus m3A78-emh hdmi motherboard and 4gb ram, and after pulling them out and rebooting i got my network back up

  • Dith

    Hellow guys I have Asus laptop and I can’t see the lan when I intl the lan drivers it’s shows me error saying the real tel network controller was not found if deep sleep mode is enabled please plug the cable how can I solve this in Asus laptop model x554l

  • Eugene Chao

    Thank you! This method worked for me. At first I thought I was missing drivers, but this solved my issues.

  • Ammar

    HP Envy 15 Q003tx
    Win 8.1 x64
    RealTek Gbe PCI Ethernet

    I was not able to Install Ethernet Driver : There was a deep sleep issue.
    Solved : Updating Bios from HP Site.

    One thing that I noticed was when NIC was undetected ; I went to boot options in bios and found an exclamation mark on network boot option. I reflashed/updated/reinstalled the bios to the version that I was already having. restarted laptop and then again checked the boot option and found no exclamation mark. booted into OS and yes it was working .

    Recommended Actions for HP Envy 15 Q003tx
    (might work for others too)

    1 – First try to reload bios defaults. if it do not solves the issue then
    2 – Try to reinstall the same version of bios . sill not solved
    3 – Try turning on Legacy boot.
    4 – have a cup of coffee with your Lappy may be that works . avoid taking a bath together 😉
    5 – then try loading setup defaults.
    6 – still not worked , reinstall newer bios version.
    happy NIC hide and seek !

  • Daniel


    This just worked for me! My LAN was not showing up so none of the drivers were able to install. I unplugged my computer, went to sleep, and it all came back good as new the first time I fired it up this morning!
    Thank you!!!

  • John-John Viado

    this did not work for me…in my case, asus x200m windows 8.1 based notebook computer, i just removed the CMOS battery for about 5 minutes, then put it back in > power on the computer > install realtek LAN driver > problem solved..

  • Hi!
    I just wanted to drop in and say thanks for the info on the Deep Sleep mode problem.

    I’m running a Gigabyte GA-P55A-UD3 motherboard with a Realtek RTL8111D network adapter chip. I’ve never had a problem until I ran the Windows 10 upgrade today. After the reboot, no Internet and no network adapter listed in device manager. I figured it was just a driver issue. I hopped onto a different computer, downloaded newer drivers and tried uninstalling and reinstalling the driver, but it didn’t work. On the reinstall, I was hit with the no device found, “deep sleep” message. I then tried manually pointing device manager to the network adapter .inf, but it wouldn’t list any devices available for install. Fortunately, before doing anything drastic or reverting back to Windows 7, I found this page.

    Since I was planning on dusting out my PC right after the upgrade I simply unplugged it, went to work cleaning, and reseated the RAM while I was in there. (I really don’t understand why this is helpful, but it’s harmless, so I did it anyway.) After having the system powered down for a half an hour, I plugged everything back in, rebooted and bam, back on the network, everything’s running fine.

    Thanks again, Adeel.