Protocol Problems is one of the many available optional side missions. It can be found and collected whilst on the planet Coruscant.
Protocol Problems is also part of a side mission puzzle
QUEST: Protocol Problems
LOCATION: Coruscant – Federal District (Fountain Plaza)
Head to the Federal District and more precisely to the Fountain Plaza, where there will be a red door. Next to this door there will be a conveyor belt with Storm Troopers around it.
Access the terminal by the Storm Troopers and solve the little puzzle. We can then swap to BB-8 and ride the conveyor belt in to the building.
Switch to any other character so that you can activate the lever and unlock the door. We will now have free access inside and out of the building.
Revert to C3-P0 and obtain the Tuanul Residence password
Now if you keep an eye on the red laser beams you will notice that one section will keep disappearing, allowing us access to the area behind
Behind these laser beams is a computer terminal that will allow us to control the C-9P0 droid. Using C-9P0 destroy the mechanism in the room in order to remove the other set of barriers.
Switch to BB-8 and activate the terminal in the area with the now removed barriers. We can then complete the mission.
We will now have access to the AA-9 Freighter for 100,000 Studs