The constant disconnects

[Mjollnir]

I really don't think it's a Eu to Us problem. My alt is on the same server but a different location and I can play on her just normally.
Are you guys perhaps in Quarrymill like me?

From interviews in the past, Yoshi has explained that the way FFXIV works is to regularly send to and from the server all of your character info including your inventory. A complete guess, but based on that, maybe characters with full inventories are more susceptible to the disconnects?

(as an aside, nowhere near Quarrymill here, just on the Omega questline dcing in Omega instances).