Players join but they are "kicked"

[frannoriega]

It's not like other problems of "Player join...". Here, players can join the game, I mean, the console logs the player log in, but before player can load the map/screen, the connection is lost.
I have a pretty good PC and good internet. Did the test on many different players. Only happens when RpgEssentials (and Banks, Quests, etc) are on the plugins folder.

Here is the console log (I removed user IP from the log, for security reasons):
2013-03-17 22:54:15 [INFO] Km3_Pullerz[/---.--.---.203:18859] logged in with entity id 11862 at ([Server] 443.5, 60.62000000476837, 464.5)
2013-03-17 22:54:15 [INFO] Km3_Pullerz
2013-03-17 22:54:15 [INFO] Added bank for: Km3_Pullerz
2013-03-17 22:54:15 [INFO] Added quest account for: Km3_Pullerz
2013-03-17 22:54:15 [INFO] [RpgEssentials] Adding new player to config...
2013-03-17 22:54:15 [INFO] [RpgEssentials] Added Km3_Pullerz to config!
2013-03-17 22:54:17 [INFO] false, true
2013-03-17 22:54:18 [INFO] [SpoutPlugin] Km3_Pullerz is running Spoutcraft build 1983
2013-03-17 22:54:24 [INFO] Connection reset
2013-03-17 22:54:24 [INFO] Km3_Pullerz lost connection: disconnect.genericReason

And the other day, it also say "Read timed out" and "Km3_Pullerz lost connection: disconnect.endOfStream"