Greetings, Kerwin!

I can understand how this may be perceived in a callous or uncaring manner, since further support through that thread is no longer possible. However, the thread was moved because the specific issues and investigations related to the concerns we were able to gather from it had been looked into by our infrastructure teams and the upstream ISP. The results of that investigation were contained within this response:
Quote Originally Posted by Enkrateia View Post
Thank you for patience and assistance while we worked with the upstream ISP in question to investigate the connection issues that have been reported throughout the thread. These reports, details, and traceroutes aided our infrastructure teams in conducting detailed investigations into the difficulties connecting to FINAL FANTASY XIV through certain upstream ISP servers. As a result of this investigation, it was found that the issues were not related to the FINAL FANTASY XIV servers. As such, we have also been sharing the collected data with the upstream ISP in question for further reviews and investigations.

We apologize that these difficulties have been ongoing, and that we don’t have an immediate resolution to share. Although we have no direct control of the situation, we’ll continue to work with the upstream ISP to investigate whether there are any specific troubles that they can isolate and work towards a solution. We’ll also share any additional updates should they become available.

If you wish to make detailed reports about your connection difficulties, we recommend contacting your local ISP directly to try to improve your connection with the upstream ISP.

Thank you again for your patience and assistance throughout this process.
We kept the thread open and stickied in the forum to see if any new information or missed details would become available for us to consider.

For any connection issues, we will be handling them normally and individually through the Tech Support forum, and the thread that was moved did contain basic troubleshooting resolutions that would be initially recommended by the support team responding to those topics:
Quote Originally Posted by Ariellendera View Post
In the case that you are receiving similar errors to the ones described in this sticky thread, we recommend first doing some standard troubleshooting as listed below. This is a list of common solutions that have helped many players in the past with standard connection issues.

-Clearing the browsing history, cookies and cache in Internet Explorer (even if this is not your primary web browser). Do the same for the PS4 internet browser if on PlayStation 4.
-Resetting your router by turning it off and leaving it off for a few minutes, then turning it back on.
-Connecting your PC/Mac/PS4 directly into the modem with an Ethernet cable
-Making exceptions for or temporarily disabling your firewall and/or anti-virus software
-Opening the following TCP ports on your router/hybrid modem
54992 through 54994
55006 through 55007
55021 through 55040
*For instructions on how to set up port forwarding, please contact your router manufacturer or Internet Service Provider (if your router was supplied by them).

If you have tried the suggested troubleshooting and still experience the same issues, we recommend contacting your Internet Service Provider and reporting the issue to them.
Should we find a new trend for us to escalate and investigate, we may create another set topic for the purposes of collecting data.

Thank you for your understanding in this situation.

LGM Enkrateia