[Elecraft] KPA1500 Wake on LAN Subnet Restriction?

[Hisashi T Fujinaka]

Answering as a retired network guy, WoL only works on the same subnet.
The WoL packet is a non-routable broadcast packet.

A simple google search agreed with me, and also had some tricks you can
do with fancier switch/router hardware to get it to work. I never did
work with Ubiquiti so I don't know if you're able to do any of those
tricks.

On Mon, 15 Sep 2025, Rick Tavan via Elecraft wrote:

> Running my KPA1500 with firmware 3.06:
>
> Using KPA1500 Remote on an Intel NUC running Windows 11 Home *on the same
> subnet as the amplifier*, I can connect to the amp as expected via Connect
> Local or Host Remote. If the amp was previously OFF, it turns itself ON.
> KPA1500 Utility can also connect to the amp whether it's initially ON or
> OFF. This is all fine.
>
> However, if I try to connect using the same programs on a Macbook Pro M1
> Max running Parallels Desktop and Windows 11 Pro *remotely from a different
> subnet* connected via a Ubiquiti site-to-site VPN, the programs fail to
> connect to the amp when it is initially powered OFF. If the amp is ON, they
> connect properly.
>
> This seems like a Wake On LAN issue. On the KPA1500, Wake On LAN is set ON.
> But does the Wake On LAN function work only with connection requests from
> the same subnet? If so, is that a feature or a bug? Could KPA1500 Remote
> and KPA1500 Utility have any control over this?
>
> Thanks,
>
> /Rick N6XI
>
>

-- 
Hisashi T Fujinaka - htodd at twofifty.com
BSEE + BSChem + BAEnglish + MSCS + $2.50 = coffee