Sadly I spoke too soon. The next day I couldn’t get the wifi working after resuming from hibernate. I tried rebooting and various things (including deleting the Atheros wifi adapter and re-installing the latest Atheros drivers). Bizarrely I was able to get the wifi working on two occasions (randomly) throughout the day, but this was with much faffing and no rhyme or reason.
I don’t think this is a hotkey issue, I think it’s a problem with the Atheros Wifi adapter drivers.
I have switched back to Windows 7 and sadly I think I’ll have to leave it like that.
Sorry to hear that, it might be worth considering swapping out the wireless adapter for another, if Windows 10 is where you want to be. It is a mini PCIe card in this model.
Alternatively it might be worth taking a look over https://www.atheros.cz/ and seeing if your wireless card has a generic driver. I would suggest searching by device hardware ID so you know that you’re looking at the right wireless card. This page might help you to locate the wireless card’s hardware ID http://www.wikihow.com/Find-Hardware-ID
H/W Id string is: PCI\VEN_168C&DEV_002B&SUBSYS_0C031B9A&REV_01
Google tells me this is Atheros AR9002WB-1NG.
I downloaded and installed the Win10 64bit drivers for this
Adapter properties now look like this:
Qualcomm Atheros AR9002WB-1NG Wireless Network Adapter
Driver Provider: Qualcomm Atheros Communications Inc.
Driver Date: 9/6/2015
Driver Version: 10.0.0.326
Digital Signer: Microsoft Windows Hardware Compatibility Publisher
Interestingly, the wifi works immediately after the Windows 10 upgrade (before installing the above driver) but not on subsequent reboot.
It’s working right now, but seems to come on only when it feels like it.
I’ll reboot and if it doesn’t work I’ll probably have to go back to Windows 7 again.
Thanks for the helpful advice about trying a different adapter. It might be the only way forward for me, but I’ll only bother with it if I’m ever forced to go to Windows 10.