I'm trying to get my desktop configured to have wake-on-wireless-LAN working. I've turned it on with:

> sudo iw phy0 wowlan enable magic-packet

and I can confirm that it's enabled:

> iw phy phy0 wowlan show
WoWLAN is enabled:
 * wake up on magic packet

However, the problem now is that the computer will not sleep at all. If I hit suspend from the Gnome Launcher, or run sudo pm-suspend, it goes to sleep and then immediately wakes up. It seems like there's some "false positive" triggering the Wake-On-Lan.

I can confirm that with wowlan disabled, the behaviour does not happen.

I'm wondering:

  • Is this a known issue?
  • How can I determine what's causing the wake to be immediately triggered?
  • Is there a way to fix it?

lspci reveals that my network adapter is Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter. I'm on Ubuntu 19.04. The card itself is a TP-Link Archer T4E.

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