Attacker cannot continue to try different passwords if the account gets locked out.

Add three 1U servers and two 1U switches to the rack. Connect the new switches to a free port on the existing switches. Connect one NIC from each server to the first new switch and one NIC from each server to the second new switch.: This solution ensures redundancy by using two switches for network connections. Each server will have two NICs connected to different switches, ensuring redundancy and load balancing in case one switch fails.

Signal-blocking materials reduce electromagnetic or wireless emissions from leaving the building, while reflective glass can help prevent signal leakage and external observation through windows.

According to the CompTIA troubleshooting methodology, the fourth step is to establish a plan of action to resolve the problem and implement the solution. The best practice is to test each solution individually to determine the root cause, rolling back the changes in between each test.
This way, the technician can isolate the cause and avoid introducing new problems or making the situation worse.