Wi-Fi dies ~5 minutes after waking from sleep in Windows 10

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My laptop initially works fine when I wake it up from sleep, but after about 5 minutes the Wi-Fi connection is lost. Windows does not recognize that there is an issue, but Firefox can't connect to anything. The issue is always fixed by turning the Wi-Fi off and back on again, but I can't do it pre-emptively: if I turn the Wi-Fi off and on again before the ~5 minute mark, it still dies when it gets to 5 minutes.

Just a few minutes ago, I waited long enough after the failure that Windows actually recognized that something was wrong with the Wi-Fi. I ran the troubleshooter and it eventually restored connectivity... but then lost it again about 5 minutes later. The second time I applied my fix (deactivate and reactivate Wi-Fi), and it actually worked properly.

I've been having difficulty searching for this because most of the hits I'm getting describe scenarios where the Wi-Fi fails immediately on wake-up. This is not the case here - the failure happens consistently around 5 minutes after wake-up.

I'm really confused by the fact that it obviously can work but consistently fails in the same way. Is there something I can do to fix this?

user1476176

Posted 2019-12-09T09:43:14.860

Reputation: 101

1You could possibly try in Device Manager > Network adapters, Properties of the Wi-Fi adapter, Power Management tab, to disable "Allow the computer to turn off this device to save power". What is the adapter's model? – harrymc – 2019-12-09T11:06:42.540

1Find the newest driver for this Wireless card and update: BIOS, Chipset, Power Manager Driver, and Wireless Driver – John – 2019-12-09T12:26:32.820

Adapter is "Realtek RTL8723A Wireless LAN 802.11n USB 2.0 Network Adapter." Windows cannot find a more up-to-date driver. – user1476176 – 2019-12-09T19:38:35.920

No answers