Vehicle used: M2 Scorcher
Map: Altis
Problem: The Artillery computer for the M2 seems to be stuck at close range in Multilayer maps. When switching from Close to Medium, the gunner has a about a 5 second window to fire a round, but after that, it will display as "CANNOT FIRE", however, falling behind the "minimal fire distance circle", the Artillery computer will give you the ability to fire and the ETA for the rounds, just like in Close distance.
However, when attempting to reproduce in Editor or a local server host, Artillery Computer works fine. The problem seems to be within dedicated servers