Intermittent lag, packet loss, disconnects from Chicago

For the past two weeks, I have had intermittent, sudden bad lag for anywhere between 10-15 seconds to 10 minutes. Actions will take over 3 seconds to respond and I get frequent disconnects, then suddenly everything is fine. Tracert isn't capturing this well because it's so intermittent.

Attached was captured at ~5:30pm CST, 11/23. The lag spike lasted about 15 seconds, then didn't happen again for those 10 minutes.

This is an issue because when it lasts long enough I get disconnected. I've lost crafting materials from disconnecting while crafting. I've disconnected numerous times from duty party content.

Platform (Steam/Mac/Windows/PlayStation): Windows 10
Any error message(s) received? No. Sometimes I will be disconnected without an error code.
Wired or Wireless connection: Wired.
Other programs being used when running FFXIV: Discord, Chrome
When error occurs/How often: Multiple times a day, unpredictably, on and off for two weeks
Techniques used to solve problem: Contacted ISP. No issues were reported on our end.

https://i.imgur.com/IjKjhI1.png

Greetings fellow Eorzean,

Please reply back with the following information so we may further troubleshoot the issue:

When error occurs/How often: (Does the error happen at a specific time frame or day? Please clarify.)
Internet Service provider:
Do you have any firewall/anti-virus software installed? If so, which ones?
Does any error occur when the issue happens?
Are you using a separate modem and router or a hybrid? Please clarify your hardware configuration with these devices along with make/model:

We look forward to your reply back.

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