Factorio Forums

i cant't play with my friend, how can i fix it. Error when i want to connect to the server - "Couldn't establish network communication with server"
I read various threads but they were not helpful. Can anyone help me please?

Post the log after a session with the issue.
Can you join other servers?
How exactly are you trying to play with your friend? Explain exactly how you try to connect to the server.
What have you tried already to fix the issue?