Windows 8.x Wireless problem after sleep or hibernate
On laptops/notebooks, is very common to deal with Wireless connection problems. With my experience, a lot of users ask me how to fix authentication issues after wake up the computer that was set to sleep or hibernate. More specifically with Windows 8.x and older, like Windows 10, that also may happen after set the PC to shutdown (on most recent Windows versions, when you set the PC to shutdown it actually doesn’t shutdown all services/processes, in fact, it will use something likely to Hibernation).
To describe more precisely the problem here, is that after your turn on PC, Windows won’t automatically connect to your default Wi-fi, and unfortunately you can’t do it manually either, it will always fail. To solve the problem you can Restart Windows or through Device Manager disable and enable again your Wireless driver. Yes, from what I know, it’s not an Operating System issue, it seems more likely to be a driver software problem. In my case, my card is Intel(R) PRO/Wireless 3945ABG. Sure, it might affect other cards too. Back to “how to fix-it” description, I already mentioned two workarounds, but they only fix the problem temporarily, as you set your PC to sleep, hibernate or shutdown, after you wake it up and problem still.
After this introduction, I think is time to move on to a permanent fix.
I have a old PC but equipped with Windows 8.1 Update 1 and today I noticed a problem. Every time I hibernate or set PC to sleep, and then turn it on, I face Wireless authentication problems. I am not sure if it is a Windows problem, a driver problem or if it is a PC’s firmware and Windows 8 compatibility problem.
All I know is that only happens with Windows 8.x, in Windows 7 no problem. I also noticed this problem in another PC I have, a laptop.
The way as I fix it, is:
- Restarting Windows
- Go to Device Manager (by pressing keys Windows + X, a Menu show up in the bottom, left side), and disable my Wireless Network Adapter. Then I enable it again and finally I can connect and use Internet. In other words, I restart the driver.
Doing these steps every time, is annoying. I found out a solution, however there must be secondary problems for Laptops or Notebooks when you apply my solution propose.
Basically, what I do is to disable the option which tells Windows to turn off my Network adapter. By default the Windows turn it off, but for some reason can’t wake it it properly.
How to fix it?
Go back to Device Manager. Go to Network Adapters < right-click your Wireless Adapter < Properties < Power Management tab and finally disable the first check-box Allow the computer to turn off this device to save power
The special case: Laptops and Notebooks
“…however there must be secondary problems for Laptops or Notebooks when you apply my solution propose.”
Now I would like to explain the my sentence’s meaning. I once had a problem in my Laptop because of my network adapter. Because the option turn off the device was disabled, the Sleep and Hibernate options didn’t work as they should. I mean, the PC screen was black and the led lights switched off [in case of sleep, the power light blinks] but after a few seconds it wake up alone. What I suggest to you, try my propose and if you face problems like this, just enable the option to turn off the device and maybe avoid Sleep/Hibernate functions.
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