Getting connection refused when a client is trying to connect C++ server

[JS]

Hi, 

My server is listening on Port a like this: [::]:a. I can see that grpc process is able to start the server (it doesnt error out from AddListening port or BuiildAndStart), netstat -ntpl shows that the port a is in Listening state. There are no firewalls configured, yet when my client when its trying to connect, is getting connection refused. 

Unable to find out the reason and kind off  blocked. Any clue or help guys??

Thanks

JS/-

[JS]

Hi

Any inferences??

[Carl Mastrangelo]

Have a link to your code?  Have you tried using wireshark to make sure the packets are actually arriving at the server?