Type of Internet Connection:
ADSL

Internet Connection Speed:
10Mbit/s

Date & Time:
all the time, more or less since October 15 update.

Frequency:
Sometimes

Character Name:
"My Negation"

Race:
Race of your character when the issue occurred.
-irrelevant! (but regular human, not blue human, not ear guy not furry and not midget)

World:
Excalibur

Class/Level:
Gladiator , from level 16 to 21

Area and Coordinates:
in instance Copperbell Mines and in wilderness (Thanalan- all of them)

Party or Solo:
"Solo".
"Party"- two members.
"Party"- four members.

NPC Name:
"None".

Monster Name:
all monsters.

In-Game Time:
every melee combat

Steps:
remove "auto face target" option in the configuration.
get melee class with melee weapon (dagger or gladius) with reach of 3 yalms
attack monster,
get close to it so you are inside the monsters hit box.
press any attack skill
you will get error "target not in range" -the bigger the monsters hit box, the more chance that you will get this error.
move out little bit until your character is outside the monster hitbox ,
attack monster.--> you will attack successfully.

**i can submit screenshot, if there is a way...**