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Control Unit repeatedly losing connection to CatWalk system

Last updated: Oct 29, 2026

Problem

The CatWalk Control Unit intermittently or permanently loses its connection to the software or hardware, preventing normal operation of the system.

Details

The connection drop may be sudden or gradual and is not resolved by restarting the software. The Control Unit itself is the likely point of failure. Observed in at least one confirmed case requiring hardware replacement.

Solution

1. Restart the CatWalk software and check all cable connections between the Control Unit and the PC.
2. Try a different USB or data cable if applicable.
3. Reboot the PC and attempt to reconnect.
4. If the connection loss persists after all cable and software checks, the Control Unit itself has likely failed.
5. Contact Noldus support to arrange replacement of the Control Unit.

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