FI5 Tech Notes TN0124 'Access to path and application was denied' error message TN0117 Communication to RP2 is in the left-hand slot is lost TN0193 GetStatus returns zero or zBus error 'Failed locking device.' TN0164 PA5 in the right slot randomly resets to 0 TN0138 PA5 Attenuation cannot be reset TN0046 CPU usage goes to 100% when transferring data from TDT hardware to the computer