11 Apr

Wireless loses connection when charger is unplugged

This article applies to Windows Vista, 7 and above.


When your laptop is not connected to a power source, you experience problems connecting to the internet using your wireless connection. The internet may be slow or keep dropping out. You may also see a message stating “Limited connectivity”.


This can be caused by connecting to a router or hotspot which does not support the 802.11 power save protocol. Also, if you have a Toshiba laptop that was original purchased around 2009 and with a Realtek wireless card, there may be a bug in the currently installed driver.


  1. Click the Start button.
  2. Type Power Options and press Enter.
  3. Click Continue if prompted.
  4. Click “Change plan settings” under the power plan that is currently selected.
  5. Click “Change advanced power settings”.
  6. In the Power Options box, click the + next to “Wireless Adapter Settings” to expand it.
  7. Then click the + next to “Power Saving Mode”.
  8. In the list that appears next to On battery, select “Maximum Performance”.
  9. Click OK.
Find the latest wireless card drivers for your laptop using this link:
  1. Click the Start Button.
  2. Type “Device Manager” and press Enter.
  3. Click Continue if prompted.
  4. Click the [+] next to Network adapters.
  5. Right Click on “Realtek RTL8191SE Wireless LAN 802.11n PCI-E NIC” or similar Wireless card.
  6. Click Properties.
  7. Click on the Advanced Tab.
  8. Click on 802.11d.
  9. On the right hand side change the drop down to Enabled.
  10. The  following steps are optional but may help:
    1. Select TX power level.
    2. On the right hand side change the drop down to 100%.
    3. Select Wireless mode.
    4. On the right hand side change the drop down menu to “IEEE 802.11b/g”.
      If you regularly stream music to other computer in your house do not change these options. Although 802.11b/g are more stable protocols, the maximum speed is 54Mbps.
  11. Click OK.

Your network will disconnect momentarily, then reconnect.

28 Responses to Wireless loses connection when charger is unplugged

  1. thnx i think i worked after nice one

  2. Tinu Abayomi-Paul March 23, 2012 at 19:24

    Solution one worked! Thank you so much.

  3. Thanks so much – this was wrecking my head!

  4. Great advice, thanks..

  5. Good Solution, Thanks Much.

  6. good job

  7. awesome. thank you so very much

  8. Thank you, Solution 1 worked for my hp laptop.

  9. Thank you! I’ve been struggling with limited WiFi for a while now, and I had no idea there was a low-power adapter mode. Fix works like a charm!

  10. solution 1 worked for me ,thanks !

  11. Finally someone knows what they are talking about. I have surfed this problem for a month and this is the only fix that really worked – AND IT IS SO EASY! Thank you so much.

  12. thanks solution one worhed

  13. Solution 1 worked for me.

    Damn…!!! if power saving option turns off the WiFi, they shouldn’t turn it off to save power, or at least give users some indication that the wireless has been switched off to save power, instead of giving a cryptic “Limited Connectivity” message.

    Very poor form on Microsoft…!!!


  14. Thx did the trick, wifi time outs occurred but not anymore since the setting.

  15. Solution one worked!!!
    Thank you very much.

  16. Hats off man!!

  17. mee too.. solution 1 is worked . thank u very much

  18. I’ve been searching for a solution for a while now and this worked. Thank you very much for the post.

  19. Thank you. 1 sorted it out … Great service

  20. Thanks solution #1 worked

  21. Thank You so much your (solution1) answer is so clear ..Great work

  22. Thanks solution 1 for my Dell XPS18

  23. Solution one worked. Thank you very much

  24. not all heroes wear cape

  25. Perfect fix (Solution 1)

  26. This worked immediately
    Thank you so much

  27. Thank you! my wireless was fixed with Sol1 but LAN Ethernet still behaves same network reconnects while power plugin/unplugging.
    Any suggestion would be appreciated.

  28. tks so much

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