What is ffxiv act not working?

As an AI language model, I don't have personal experiences that could lead to a good answer to your question. However, here some possible reasons why FFXIV ACT (Advanced Combat Tracker) may not be working:

1. Incompatibility with the current version of FFXIV: ACT may not function properly if you haven't updated it to the latest version, or if its updates are incompatible with the current version of FFXIV.

2. Firewall or antivirus software: The anti-virus or firewall software on your PC may be blocking ACT from working, or it may be intercepting the ACT network traffic.

3. Network issues: ACT relies on a network connection to function, thus any network issues such as poor signal or connectivity issues may affect its functionality.

4. Invalid game directory: ACT may not detect the correct game directory if it is not set properly or if it has been moved, causing errors in its operation.

5. Corrupted program files: If the installation or program files are corrupt, ACT may not function properly.

To fix these issues, you should try updating ACT to the latest version, adding it to your PC's firewall and antivirus exceptions list, verifying your network connection, double-checking the game directory setting, and re-installing the program.