Only a couple of your scanners appear to be working. The scanners that are not working show the following:

Scanners should be using a fixed IP address. Click here for more information.

Theatre Manager tracks the scanner count by IP Address. If the scanner change their IP address (which they can do if they do not have a fixed IP address) a single scanner could be counted multiple times and your database knows how many scanners you are licensed for. If an IP address changes, then the database says - and now we have a fifth IP address. So somewhere along the line, Scanner #2 got assigned a new IP address.

Second, Stop/Start all the Web Listeners (so they are all off at the same time). This will reset the IP addresses in the log. When you start the scanners again, the new IPs will be registered and the scanner counts will be refreshed. You can also go the to the Web Listener and click the Clear Cache button.

Do not use a DNS Address, use a Static IP Address.

Further on the scanner, is it looking for tickets.YourTheater.com or is it looking for the direct IP address of the Apache machine (192.xxx.xxx.xxx)? Entering the IP of the Apache machine will speed transmission as the scanner will not have to wait for the DNS to resolve. You change this in the scanner setup, and change the address. Click here for the setup page.