So I have been working with iperf3 to understand more about my system’s network performance. I have been trying to make a connection between my desktop computer which runs on nvidia and my laptop which has a Ubuntu os. I am trying to establish a successful connection between them, but it’s showing me that the connection is failed. I even tried to ping it and that didn’t work. What might be causing this??

The commands I have used is mentioned below:

The command I ran on the desktop computer :
iperf3 -s
The command I ran on the laptop:
iperf3 -c -u -b 5M

I was expecting a successful connection between them
Additional information:
The desktop computer as well as the laptop share the same private network