I can set ISY variables using the rest commands, but I can't turn devices on/off.

Commands are sent from my linux machine.

The following works OK (200 OK):

[root@myplace]# wget -O /dev/null --user=me --password=mypassword http://192.168.1.103/rest/vars/set/2/7/0
--2019-01-23 16:56:52--  http://192.168.1.103/rest/vars/set/2/7/0
Connecting to 192.168.1.103:80... connected.
HTTP request sent, awaiting response... 401 OK
Authentication selected: Basic realm="/"
Reusing existing connection to 192.168.1.103:80.
HTTP request sent, awaiting response... 200 OK
Length: 104 [text/xml]
Saving to: ‘/dev/null’

The following fails (ERROR 404):

The real device node was used, not the 00.11.22 shown.

[root@myplace]# wget --user=me --password=mypassword http://192.168.1.103/rest/nodes/00.11.22/cmd/DOF
--2019-01-23 16:58:51--  http://192.168.1.103/rest/nodes/1B.3F.20.1/cmd/DOF
Connecting to 192.168.1.103:80... connected.
HTTP request sent, awaiting response... 401 OK
Authentication selected: Basic realm="/"
Reusing existing connection to 192.168.1.103:80.
HTTP request sent, awaiting response... 404 OK
2019-01-23 16:58:51 ERROR 404: OK.

What am I doing wrong?

Use spaces (%20) rather than dots in the address.  If you dump the nodes via http://ISY/rest/nodes and find the one you're looking for, you need to reference exactly what it reports in "<address>xxx</address>".

Edited January 23, 20196 yr by rccoleman

rccoleman -   By Golly It Worked!

The dump shows   <address>00 11 22 1</address>

I used  the following.  I had to add the 1 at the end to make it work.

/rest/nodes/00%2011%2022%201/cmd/DOF

Thanks a lot, I haven't been able to find that explanation any place else.