Developing a C# Application that uses an WDSL/SOAP service and connects to a server via port 443

I know it is a Firewall Windows 2008 Server issue. Because when I disable it, it works perfectly. Trying to create a rule allowing inbound connections to the port 443, it blocks as well.

Netstat tool just shows that 443 port is attempted to be opened.

Is there any solution to know which port is blocking the access to the remote server in order to open it?

  • You're creating the inbound firewall rule on the remote web server or your client server? – squillman Nov 18 '13 at 16:27
  • 1
    If your application connects to the server on port 443 then you need to configure the firewall on the server to allow inbound connections to port 443. – joeqwerty Nov 18 '13 at 16:30
  • @joeqwerty: As I commented, Opening port number 443 (inbound), firewall blocks as well the connection. – kmxillo Nov 19 '13 at 7:44
  • @squillman: On the remote server. – kmxillo Nov 19 '13 at 7:45

There is a rule on Windows Firewall called "World Wide Web Services (HTTPS Traffic-In)", and I was allowing just it. It belongs to a program "system" thats why external connections were blocked.

Creating a new rule specifying "All Programs that meet the specified conditions" and the port 443, it worked!

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.