I'M writing to a udp connection like this: if _, err

Question

I'M writing to a udp connection like this: if _, err

= gudpconn.Write(buffer[:n]); err != nil {
fmt.Println("Error writing RTP packet to GStreamer:", err, len(buffer[:n]))
}

This is working without issues locally, but on Docker Alpine image, it is facing many connection refused errors:
Error writing RTP packet to GStreamer: write udp 127.0.0.1:53574->127.0.0.1:4013: write: connection refused 42

This doesn't happen on Ubuntu image

Anyone else has experienced similar issue?