KB Parallels

Symptoms

After re-instalation or upgrade of Parallels RAS

Console, Port mismatch 443 error appear.

Cause

Port 443 is in use by another process.

Resolution

To check what application uses port 443 start CMD with administrative privileges then run:

Check which process is listening to port 443.

You need to find out what blocks this port.

Examples of the most common processes that are using port 443:**

1. svhost.exe (Port 443 used by IIS)

   • Open Internet Information Services (IIS) Manager.

   • Select the Web site
     
   • In the Action pane, click Bindings.
     
   • Click https > Edit
     
   • Change port number.
   • Press OK
   • In Parallels RAS Console > Gateway > Properties > SSL/TLS change port number.
     
   • Press OK, then press Apply
   • In Parallels RAS Console > Gateway > Properties > SSL/TLS change port number to 443.
   • Press OK, then press Apply
   • In IIS bindings change port number to 443
2. Skype.exe
   • In Skype, from the menu bar, click Tools > Options.
   • Under Advanced, click Connection.
   • Untick Use port 80 and 443 as alternatives for incoming connections option.
     
   • In Parallels RAS Console > Gateway > Properties > SSL/TLS change port number.
     
   • Press OK, then press Apply
   • In Parallels RAS Console > Gateway > Properties > SSL/TLS change port number to 443.
   • Press OK, then press Apply

Additional information

Services which are listening on specific port (for example, 443) can be found using the following command: