{"id":1389,"date":"2011-02-09T20:44:04","date_gmt":"2011-02-09T09:44:04","guid":{"rendered":"https:\/\/mosmar.com.au\/?p=1389"},"modified":"2019-07-01T18:02:18","modified_gmt":"2019-07-01T08:02:18","slug":"wake-on-lan-thats-sleeping-in","status":"publish","type":"post","link":"https:\/\/mosmar.com.au\/wake-on-lan-thats-sleeping-in\/","title":{"rendered":"Wake On Lan that’s sleeping in"},"content":{"rendered":"

We recently developed a web app for a client that allows their users to wake up their computer without knowing the MAC address – just their machine name. The app gets the MAC address and default gateway details from the client’s Microsoft SCCM database.<\/p>\n

All was going well, until we found some machines that wouldn’t wake up. Further investigation revealed that it was only when machines had been shutdown via Windows 7 – ie\u00a0if the machine had just gone to sleep, or had been powered off using the power button then it would wake up fine.<\/p>\n

Before and after installing the Intel NIC driver<\/span><\/span>Turns out those difficult machines were those using an Intel NIC and running the standard Microsoft driver included in Windows 7 (so basically 99.99% of the machines!)\"\"<\/a><\/p>\n

After downloading and installing the latest drivers from Intel, a new Power Management tab appeared when configuring the NIC, and lo and behold, there’s a couple of extra settings relating to Wake On Lan that were disabled. Enabling the “Wake on Magic Packet from power off state” option\u00a0magically\u00a0fixed the problem (we enabled the other options while we were at it too).<\/p>\n

Now the only problem is how to roll out the driver to all machines with these options by default. It sounds like it’s a setting in the NIC’s firmware that is controlling this (if the machine is powered off then it can’t be the driver?), so it would be interesting to reimage a machine after changing the setting and then use the original driver to see if\u00a0the problem comes back. I guess we’ll see what happens…<\/p>\n","protected":false},"excerpt":{"rendered":"

We recently developed a web app for a client that allows their users to wake up their computer without knowing the MAC address – just their machine name. The app gets the MAC address and default gateway details from the client’s Microsoft SCCM database. All was going well, until we found some machines that wouldn’t […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[28,1],"tags":[],"yoast_head":"Wake On Lan that's sleeping in - Mosmar<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mosmar.com.au\/wake-on-lan-thats-sleeping-in\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Wake On Lan that's sleeping in - Mosmar\" \/>\n<meta property=\"og:description\" content=\"We recently developed a web app for a client that allows their users to wake up their computer without knowing the MAC address – just their machine name. 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