Classify a failed or unreachable remote print, preserve the job and access context, and decide when local inspection is required before pause, resume, cancel, or retry.
Separate layer shifts, ringing, VFA-like artifacts, homing faults, collisions, and geometry from confirmed mechanical or slicer causes using model-aware checks and a controlled repeat.
Choose the extrusion control that matches the observed problem, understand its profile and firmware boundary, and validate it without treating a value as portable.