With the beta Cyber Security Pro there is now a firewall feature. The default ESET firewall setting is: "Automatic With Exceptions"; the exceptions are pre-defined. There is a way to add other exceptions yourself only there are no clear instructions on how to do this. In my case, I still use the Apple TV 1st Generation as it has a built-in 160 gigabyte hard drive and is like an iPod, syncing to iTunes using your own TV as the display/monitor. Well, once I installed this beta Cyber Security Pro 5.0, the Apple TV stopped syncing. The error message from Apple was that the anti-virus software was blocking port 3689. I could not open port 3689 at all But - I discovered a great work-a-round that I wanted to share with everyone: I changed the setting of ESET's new firewall from "Automatic With Exceptions" to "Interactive." Then I opened up iTunes. The Apple TV 1st Generation tried to sync. This time, instead of getting the error message about port 3689 I got an ESET pop-up telling me that the network is asking permission to use the port. I clicked on "create a new rule" and "Allow." A new rule was automatically created by ESET in the proper syntax. The Apple TV 1st Generation now worked! Then I did this: I changed the ESET firewall setting back from "Interactive" to the default "Automatic With Exceptions." The newly created "rule" remained in the list! I then rebooted the computer, and now that ESET was back to the default firewall setting of "Automatic With Exceptions" and one of the "exceptions" was the newly created rule, I opened up iTunes and everything worked great Summary: An easy way to create a new "exception" for the new firewall in ESET Cyber Security Pro ver. 5.0 is to let ESET itself create the new rule (because the ESET software knows EXACTLY what is trying to be accessed and what the rule of exception syntax should be) by changing the firewall setting from "Automatic With Exceptions" to "Interactive." Once the rule is created, go back to the default "Automatic With Exceptions." The newly created rule remains, and the ESET software continues to work properly as designed. I hope this little tip helps!