According to the Pd tutorial http://www.pd-tutorial.com/english/ch04s04.html I have to use "netsend" to send a message to a Pd patch from another computer,

My console only prints:

setting SO_BROADCAST
connecting to port 1000
connecting stream socket: Unknown error (10061)

In the Pd of my other computer I set up a netreceive object, but nothing happens.
How to troubleshoot this error?

@RayManiac Are both computers on the same private network with addresses in the same subnet?
If not then see..... https://forum.pdpatchrepo.info/topic/12815/osc-messages-on-remote-ip/3
What are your [netsend] and [netrecieve] settings?
David.

@RayManiac The error text shows 10061, different from the title... Looking up 10061 turns up a probable cause: "TCP error code 10061: No connection could be made because the target machine actively refused it."

My first suggestion would be to try UDP mode instead of TCP. I'm not a networking expert, but if I'm not mistaken, TCP requires the target machine to have opened the port already and be prepared for the initial handshaking. If it isn't ready, then the connection can't be established.

UDP doesn't do any handshaking, so it may succeed where TCP failed.

UDP should be ok on a LAN.

[netsend -u port]
[netreceive -u]

Also add a -b flag if you're sending OSC packets.

Also it's highly recommended to use high port numbers for private connections. Lower port numbers may already be in use by the system -- a port number collision would cause the object to fail. Try in the 30000s or 40000s, or at least above 7000.

hjh

Yes, my computers are on the same private network within the same subnet.
I have taken the same example from the pd Kreidler tutorial with the message "send hello".
The connection message contains the values "localhost 1000".

@ddw_music: The higher port numbers don't work either. And UDP is also not working.

@RayManiac It will not be "localhost".
Localhost means "on the same computer".

You will need to know the IP address of the computer you are sending to and then connect with a message like [connect 198.168.1.23 1000( although as @ddw_music says ports are reserved by so many applications that you really should use a port above 8000.

So [connect 192.168.1.23 8499( .......for example.
And [netreceive] set to receive on port 8499.

You really should set the IP address for the remote computer to "static" and not rely on DHCP.
Next time it joins the network it might be given a different address by the DHCP and then your connection will of course fail.
Go to the network settings on the remote computer interface (wireless or Ethernet depending on what you are using) and set a static address. Look at your router web page and see what range of addresses DHCP will assign. Usually it is 192.168.1.50 to 192.168.1.100.
So as to be sure of no conflict set the remote computer to an address outside the range.... 192.168.1.110 for example.

Only ever change the last of the four numbers though or you will be setting an address outside the subnet of the router.
David.

I made it now, as you both said. The localhost has been changed to static IP address of my computer. I also tried pd on my VM and I can now send data to my main OS. Highly thanks to you both!