Cross,

The information provided by others in this thread is accurate. While FINAL FANTASY XIV seems to be the cause of your lost internet connection, it’s not what’s actually causing the disconnect, especially as you say you have to actually reset your hardware.

As indicated previously, the hardware itself may be failing, or may just not be able to handle the connection types that FINAL FANTASY XIV is requesting through it. This might be resolved by an update to the firmware, or other solutions within the software of the router itself. For this, you would want to contact the hardware manufacturer for further assistance.