Mac OS High Sierra Crashing Consistently

I have the latest update for High Sierra and it still hasn't resolved my issue with Final Fantasy XIV crashing. It crashes at least once during my gameplay, and I've tried turning down the graphics.

Here are my iMac specs:

Processor: 3.5 GHz Intel Core i5
Memory: 16 GB 1600 MHz DDR3
Graphics: AMD Radeon R9 M295X 4 GB

I have a 1 TB Fusion Drive on my iMac.

Whenever it crashes I get the error on my iMac "We've encountered an unknown error." Or the game just freezes.

Anyone else having this issue? Can I get some help?

Hello Kotono116,

The issue you are describing is most associated with interference with the game data. Most of the time, it results from certain security/privacy changes on Safari. Other times it occurs when an application that is running in the background is causing interference, such as Anti-virus software, firewalls, media players, web browsers, etc.

Please make sure all background applications (including anti-virus programs such as Norton, Kaspersky, etc.) have been disabled and/or closed to minimize game interference.

Ensure that the latest version of Safari is installed on your Mac (even if you don't use Safari). Once Safari is up-to-date, please open the Safari browser and make sure that all Browser History and Cookies/Web Data have been DELETED. Please also make sure that "Cookies" are ACCEPTED and not being filtered.

Once these options have been adjusted, please run the Apple Update program to check that all firmware is up-to-date on your Mac OS. Once this process is complete, please re-launch the FINAL FANTASY XIV game.

If the suggestions provided above do not resolve the issue, then there is a communication error.
Check the following Port Ranges on your router/modem to ensure that the following Port Ranges have been opened/forwarded/triggered:
▼TCP
54992 through 54994,
55006 through 55007,
55021 through 55040

*You may learn how to do this by visiting http://www.portforward.com/
Find your specific router's brand and model number from the 'List of Routers' and you will be provided a step-by-step guide on how to access these port settings.
Otherwise, your ISP may forward these ports for you.*

If you have properly configured your router, and you are still experiencing these issues, our next suggestion is to bypass the router, and connect your computer directly to your modem. Please ensure that you power down both the modem and the computer for at least five minutes before attempting to connect to FINAL FANTASY XIV.

If you continue to receive these same errors when you are connected directly to the modem, then the problem lies with your ISP. We would recommend contacting them and advising them that one or more of the ports previously provided to you are being blocked or filtered, and that you do need access on these ports.

Hope to be of assistance.