Thanks for your response. Yes, the Code (Transmit and Receive LTE MIMO) works fine for a single SDR fine. However, when I run on two separate IP addresses, it does not run correctly. I have Ubuntu 18.04 installed and matlab installed on this machine.
I also tried to run this code from the following github link which claim to run for two separate IP addresses. This also gives me the same error.
The code Main_TwoBoard.m is meant for two separate IP addresses. Even this code gives the same error.
I am attaching my code in a zipped file. YOu need to change the IP address for your use.
Thanks for your help.