Windows Server, Windows 7, and Windows 8 have built-in firewalls activated by default. These can restrict network access to applications requiring connections over the TCP/IP interface. You can test port communication by using Windows Telnet client feature in a command prompt to check communication is working properly. For step-by-step instructions on opening ports for client and server communication, please see the section ‘Opening ports for Client/Server Communication’ in the SOLIDWORKS PDM Installation Guide. This section is located in Chapter 5 – Installing SOLIDWORKS PDM. This table summarizes the ports that must be reachable. You open the firewall ports on the listening/receiving side.
1. Activate the Windows Telnet client on the client machine (start > search ‘Turn Windows features on or off’)
2. Check ‘Telnet Client’ then hit OK.
3. To telnet into the server port open a command prompt on the client (Start > Run > type cmd and hit enter)
4. Type “telnet ” (without the quotation marks or arrows) and hit enter. See table above for specific server port numbers to test.
5. If the screen comes back with a blinking cursor the telnet succeeded.
6. If the telnet failed try substituting the with the IP address of the server.
7. If the telnet still fails there is a TCP/IP problem between the client and the server and it should be investigated by the network administrator. It is possible that a firewall could be blocking communication on that specific port.