# Troubleshooting ## Common Challenges | ISSUE | CHECKPOINT | | ------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | No indicators illuminated | Check mains power | | Red & Amber indicators | Check E-Stop mushroom switch on the Accessory Hub | | Amber indicator |
  1. An E-Stop is engaged in the system, check the OLED display for Node status
  2. Confirm Terminators are installed
| | All connected Stagehands are not releasing E-Stop |
  1. Confirm the Base has power
  2. Confirm the Accessory Hub has power
  3. Confirm no Remote E-Stop switch is activated
| | Showstopper Accessories unresponsive |
  1. Confirm Accessory cable is connected
  2. Confirm terminations
| | Remote E-Stop is functioning, but not sending feedback to Spikemark |
  1. Confirm the remote has a unique E-Stop ID
  2. Confirm the Showstopper Base has a unique IP Address
  3. Confirm you are using a Showstopper 4 Terminator (8 pins) at the end of the chain rather than a Showstopper 3 Terminator (4 pins)
  4. Confirm Showstopper 4 Accessory cable is twisted pair
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