Solved Windows 7 Laptop Can't Find Network After Sleeping

[Budfudder]

I have a Dell Latitude E7450 running Windows 7, 64 bit, which works fine. Except...

Whenever I put it to sleep, on waking, it cannot find any WiFi network. I constantly move between my office and home, and each time I do, I have to reboot so that I can find the network.

If I actually physically plug it into the network, it works fine, but it can't find any WiFi network at all - just endlessly thinks about it and fails to find anything.

 

[GokAy]

According to some searching, try toggling the option to "Allow the computer to turn off this device to save power" in Device Manager - Wireless adapter properties - power management