[SOLVED] Cannot connect to localhost from QTcpSocket to QTcpServer
I have strange issue. I wrote network applications. one server and one client. it worked fine until today. but today I have a problem. server started and QTcpServer::listen method returns true(so it listening to host localhost:1234). but from my client and telnet I can't connect to localhost:1234.
Why? any ideas?
OK. Solution was so simple. I am on windows and there is file named hosts on the path C:\Windows\System32\drivers\etc. just edit this file and add this line:
Sometimes some application during the installation edits this file and replaces
with 0.0.0.0 localhost
so you need to fix it manually.