Not running on private 4G network

[Vishal6ji2]

I tried with our own private 4G network where only mobile data is on and when i'm running bidirectional in udp it is giving connection refused.
And when i tried with Tcp on bidirectional then it is only showing uplink not downlink data.

[Abhi5h3k]

Hi 👋, thanks for raising this.

Do you have any logs you can share (both client and server side)?

Since the error says connection refused, it usually points to the server not listening on the expected port or being blocked by a firewall. Could you please check the server logs where iPerf is hosted and confirm it’s running and reachable?

Also, which command and parameters did you use when running iPerf? That might help us understand the issue further.