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[Gameplay] Disconnected during Katramus Depths

MapleStory 2 Rep: 100
Post: 1
in Bug Reporting
For my SO and I playing from our house, we are trying to proceed in the epic quest Real Friendship

Every time we enter Katramus Mines and get to the boss, after 1 second of combat, the connection becomes EXTREMELY (unplayably) laggy and we both get disconnected within about a minute.

This happens every time we enter, we have tried about 4 times.

We are both running on Windows 10, each on different hardware.