Wake on Lan has suddenly stopped working

Wake on Lan has suddenly stopped working, after a few weeks.

I: - Enabled the option in the BIOS - Prevented adapter from saving power - Enabled delivery of magic packet in device manager - Configured a static ip - Port - forwarding

I know my public ip changed, could this be the cause of the problem?

I'm running Windows 10 Pro 64bit

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2 Answers

Please know that it's not related to IP changes. At Layer 2, (the Data Link layer) WOL uses MAC (Media Access Control) addresses to turn on a specific PC. The MAC address is critical, as a PC in the off condition doesn't have an IP address.

Besides this, if there is any other changes like install some updates including Windows or drivers, you can try to rollback and see if it works for you.

Then, check power option to see if the Fast startup is turned on, if so, turn off it.

Check Wake on Magic Packet under network adapter properties has been configured to enabled:

Check if ethernet led is on when you shutdown the PC.

If it is not then -

1. Update network adapter driver

2. Right Click This PC > Manage > Device Manager >Network Adapters > Double Clicked on motherboard network adapter > Advanced tab > Enable Shutdown Wake ON LAN

Check if ethernet led is on when you shutdown the PC.

Hopefully, it will be turned on now and you will be good to go.

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