Wake On Lan stops working after PC has shutdown for a given amount of minutes

Wake On Lan stops working after PC has shutdown for a given amount of minutes

Wake On Lan stops working after PC has shutdown for a given amount of minutes
Wake On Lan stops working after PC has shutdown for a given amount of minutes
a week ago - last edited a week ago
Model: SG2210MP  
Hardware Version: V5
Firmware Version: 5.0.12

Router: ER605 v2, firmware: 2.3.3

Switch SG2210MP V5, firmware: 5.0.12

Hardware Controller OC220, firmware: 1.2.11 Build 20251128 Rel.52802 (Stable)

 

I have upgraded my omada setup with the SG2210MP switch. I have setup Wake-On-Lan settings on 2 computers, one windows PC (my main PC) and one with Proxmox installed running containers. The Wake-On-Lan is setup to wake my main PC and my Proxmox node, not any containers. Both computers are connected on the SG2210MP switch and have VLANs setup with ACL rules setup.

 

Configuration for Wake-On-Lan is the following:

  • IP-MAC Binding is setup for both computers
  • DHCP Reservation for both computers
  • Port Forwarding for both devices on their specific IPs with ports 7 and 9 respectively

 

 

Before buying the switch and connected the computers, both were connected on the router and with the same configuration on standlone mode everything worked correctly.

Now that the setup involves the controller and the switch, I am expreriencing the following issue:

When one of these computers is shut down, if I immediately try to wake them, it works. HOWEVER, after some time passes after I shut them down, it does not work.

The same exact issue is happening on both computers, one windows, one debian with proxmox and both are configured correctly for wake-on-lan.

 

I have read that some switches put ports on deep sleep after a while after the device has shut down, is that true? If so, I have not found anything specific on the omada controller UI regarding this feature.

 

Any solution will be much appreciated.

 

Thanks for reading.

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Re:Wake On Lan stops working after PC has shutdown for a given amount of minutes
Thursday

  @athagiorgos 

Have you tested exactly how many minutes it takes for the issue to occur?Also, did you try running a ping test to see if there is any response?
Were there any error messages?Additionally, can you test whether the same issue occurs when the device is connected directly to the router or to another device?

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Re:Wake On Lan stops working after PC has shutdown for a given amount of minutes
19 hours ago

  @Ethan-TP 

Hi,

 

Pinging does not work when any of those computers is off. However the blinking lights on the switch turn orange for the ports of these two PCs.

 

I cannot find any error messages on the controller regarding the magic packets while I am trying wake-on-lan.

 

When those computers were connected on the router wake-on-lan worked fine from the internet.

 

I tried wake-on-lan from other PCs on the same subnets and both wake up, but from a different subnet it does not work after some time, maybe like 30 minutes or so.

 

It seems that the router is forgetting ARP tables entries since it only works when any of those PCs are recently shut down or that the Port Forwarding rule stops working in general after some time of inactivity??

 

Thanks

 

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