Please try the following actions as they may help in this type of situation:
- Review the Power Options - Power plan and make sure the Wireless adapter is set to Maximum Performance, when plugged in and on battery.
- Go to Windows* Device Manager - Network Adapters, look for the Intel® Dual Band Wireless-AC 7265 and enter the adapter properties, in the Power Management tab, toggle off/on the option "Allow the computer to turn off this device to save power". Check if the behavior improves when you change this setting.
Let us know if this helps; also, we would like to get the following information:
- Computer model, Wireless driver version (as shown in device manager)
- Do you have other computers of this model using this type of wireless adapter?
- Is this the only computer showing this behavior?
I will try your suggestions.
For the questions you posed:
It's a dell XPS 13
We have no other computers of this type.
This is the first I've ever seen this behavior.
The driver version is 220.127.116.11
Should have tried this before I posted. I have no Wireless adapter section under my advanced power management settings, and there is no power management tab in the adapter properties window.
The properties of the adapter in Device Manager normally have a Power management tab as seen in this picture:
- Please confirm if your PC does not show this option.
- Apply the configuration from the following advisory:
- Also, in the advanced properties of the adapter set U-APSD support: Disabled.
Try doing full reboot of the computer and after that, check if the Power Management tab is available in the driver properties.
We also recommend you to do a clean install of the wireless driver, removing previous driver versions from the system.
1. Download Intel® PROSet/Wireless Software for Windows 8.1* version 17.16.0 (32 or 64 bit depending on your OS). Save the file in your computer.
We will use Intel PROSet/Wireless WiFi Software (includes Drivers): wireless_17.16.0_e132.exe or wireless_17.16.0_e164.exe
2. Go to Control Panel, Programs and Features and Uninstall "Intel® PROSet/Wireless Software", *If it is installed.
3. In Control Panel, Device Manager, Network Adapters, right click on the Intel® Dual Band Wireless-AC 7265 and Uninstall it, make sure you mark the option to "Delete the driver software for this device".
Reboot or scan for hardware changes. If an older driver is detected and installed, repeat the actions to uninstall/delete it as well.
4. Install the driver 17.16.0 you downloaded in Step 1.
I followed your instructions. Both Power Options you described are still not there. The version of the software is identical to the one I took a screen shot of above.
I should reiterate that my initial steps before starting this thread was to do a fresh install from an official microsoft ISO of windows 8.1, then immediately install the package you linked to. I did no other configuration or software installation of any kind. Only a moment ago when you had me reboot did I even install the windows updates.
I do occasionally see messages from the windows troubleshooter when I try "troubleshoot my connection" after it drops that say the drivers have a problem. I don't know if that's a meaningful message, but it's what I have to work with :/.
Thanks again for all your help.
Please let us know the CPU model used in your PC.
Can you confirm if the connection is lost during normal operation, or if the adapter fails to connect only after resuming from sleep/hibernate.
Check Control Panel and Power Options. If the settings you are looking for are not there, it is possible that the OEM (Dell) may have their own tool to set power save settings.
Does this connectivity issue occur when resuming from S3 or sleep mode by any chance? If so, try set the power settings to maximum performance rather than balanced or maximum power save.
The device manager says that it is an Intel Core i5 5300U CPU.
I don't know if it would happen during normal operation because there is no software on the machine and no one can use it until I get this worked out and give it to the professor who ordered it. So far it has only been observed to happen during sleep mode, and not even immediately. It happens only when the computer has been idle for several hours. (At least that I've observed)
@Johns: There is nothing relevant to a wireless adapter in the power settings. (see screenshot below) However, this machine has no Dell software on it at all. It has been formatted and all that has been done was installing a vanilla copy of Windows 8.1 Pro and the driver for this network adapter. I have not even browsed to a website on it, other than the link given above to the driver.
There are no other power plans available. 'Balanced' is the only one that exists. Any other power plans would have to be created, and since there are no settings to change that relate to the wireless card, I would not know how to go about creating such a plan.
We are checking with our additional resources about possible solutions for this issue.
The following documents from Dell and Microsoft indicate that some power options may not be available in specific computer models using Windows 8.1:
Try disabling fast startup in Windows and check if the issue is solved with the change, please use the following link for reference:
NOTE: This link is being offered for your convenience and should not be viewed as an endorsement by Intel of the content, products, or services offered there.
Please make sure that the computer is using the proper Dell drivers for other PC components.
We advise you to contact Microsoft and check with them what can be done about the missing power options in Windows.
Well unfortunately we have reached the end of our troubleshooting. I have been told by my supervisor to stop messing with it and just send it back to dell. Hopefully they can figure it out.
I appreciate all your help and am sorry we didn't get to the bottom of it.