Not really a connection thing but to fill in the whole template:
ISP: Time-Warner
Type of Internet Connection: Cable
Internet Connection Speed: 50 mbps
Date & Time: Always
Frequency: Always
Character Name: Elasanria Servion
Race: Mithra
World: Hyperion
Class/Level: All
Area and Coordinates: All
Party or Solo: Both
NPC Name: N/A
Monster Name: N/A
In-Game Time: All
Steps:

With those log settings I see non-party members "Successful hostile actions" all the others act as expected.

If I turn on "Successful hostile actions by enemies" I don't see them anymore, I assume that other players(outside of upcoming PvP^^) don't count as enemies.