Request for information: ISPs and P2P throttling

[MomoCakes]

ISP: Cox Communications
Location: San Diego, CA USA
When: Occurs during crafting, gathering, doing end game events(Coil, Ultima EX, Primals EX, or crowded areas)

This issue has started AFTER the Patch 2.1 I did not have this issue previously and my husband and I and our roommate all play FFXIV together at the same time in our house and prior to 2.1 did NOT have this issue. I have spoken to them I upgraded my modem to docsis 3 dual band and upgraded my internet service as well with hopes to solve this but the problem still persists, which leads me to believe it is not an ISP issue here is my speed test. http://www.speedtest.net/my-result/3208852657