This is the main screen to the TCCAdministrator tool.

The first thing we need to do to begin using the TCCAdministrator is to add the workstation and a shared secret to the Administrator to the TCCRadius Clients.cfg file. For example, if my workstation was 198.77.106.5 and the shared secret was 'foobar', the entry in the Clients.cfg file would look like the following:
192.168.0.5 foobar
Now, restart TCCRadius (our server is on 200.200.200.201).
Next, open the TCCAdministrator and click the Configure TCCAdministrator button.

The IP Address field is the IP of our Radius Server.
The TCP Port is the port used by the TCCAdministrator thread.
This can be changed with the AdminPort option in the
TCCRadius.cfg file.
The Shared Secret is the shared password for our workstation that
we listed in the Clients.cfg file.
That's it, the TCCAdministrator can now talk to the TCCRadius.
To test the TCCAdministrator, simply click on the Configure TCCRadius button. If you get a page with settings from the TCCRadius.cfg, your communication with the TCCRadius server is complete. If you get an "Unable to Contact message", try some of the troubleshooting options below.
Verify the Clients.cfg file in Notepad (or your favorite text editor) and make sure that your workstation IP Address and shared secret match those in the TCCAdministrator Configuration screen.
If TCCRadius is installed as a service, verify that the TCCAdministrator thread in Control Panel is Running.
If TCCRadius is in Debug mode, verify that you saw the
messages:
Admin Server Listening on Port 7000
TCCRadius Administration Service Started.
If running on NT, verify that TCCRadius Administrator is bound to the port listed in the AdminPort option of TCCRadius.cfg file. Enter 'netstat -a' at a command prompt and look for the port number and see if it is listening. (default port is 7000)
If the default port of 7000 gives you problems or BIND ERRORs, change the port to something else (perhaps 10000 or 11000). To change the port, stop TCCRadius (all services) and open the TCCRadius.cfg file and look for the line AdminPort=7000 and change the port number.
Try the administrator from a different workstation, remember to add the workstation to the Clients.cfg file.
After verifying everything, RESTART TCCRADIUS.