How to establish a network between two PCs using wi-fi?

I want to make the data transmission from a server to a client and then the client to the server using the TCPIP function. But when I try to establish customer transmission to the server, an error occurs in the fopen function. Someone could tell me what may be the mistake? Thank you.

Answer 1

[Walter Roberson]

Generally speaking:

• You might have the wrong IP address
• You might have the wrong TCP port
• you might have coded the tcp() call incorrectly
• there might be a software firewall on the client that is interfering
• there might be a network firewall on the client network or the server network that is interfering
• the client or server are not within range of each other and one or both might not be connected to a wifi access point that is connected to a router or bridge
• the signal quality might be very poor

[Guilherme Bento]

Thank you for your help, Walter Roberson.