Connection Errors and Unplayable Lag

[Zaiekk]

Ever since 2.15 I've been getting a ridiculous amount of 90k and 2002 errors. I get a minimum of 6 in a single day. Sometimes the game plays fine, but then I get unplayable amounts of lag. Everything freezes save for idle animations for several seconds. I've seen it go on for as long as twenty seconds at a time. And I've had episodes where these ridiculous lag spikes go on for several minutes. I know it can't be anything on my end, because I have other MMOs on my computer that play with literally 0 lag and connection errors whatsoever.

So I'm here, seeing if there are any answers to be found. Thanks.