====== TopSpin 3.* - CodeMeter CPR Listener Port Error ======

**Error:** "The program tried to start up the CPR Listener on the following TCP/IP port numbers but all of them seem to be unavailable. Checked port numbers: 5650-6672"

===== Troubleshooting Steps =====

==== 1. Check for Zombie CodeMeter Process ====

<code bash>
ps aux | grep -i codemeter
ps aux | grep -i wibu
</code>

If multiple instances are running, kill them:

<code bash>
sudo pkill -f CodeMeter
sudo pkill -f wibu
</code>

Restart the CodeMeter daemon:

<code bash>
sudo /Library/CodeMeter/bin/codemetercc restart
</code>

==== 2. Check What is Using the Ports ====

<code bash>
sudo lsof -i :5650-6672
</code>

This will identify any process squatting on the required ports.

==== 3. Restart CodeMeter via launchctl ====

<code bash>
sudo launchctl stop com.wibu.CodeMeter.daemon
sudo launchctl start com.wibu.CodeMeter.daemon
</code>

==== 4. Check macOS Firewall ====

  * Go to **System Settings → Network → Firewall → Options**
  * Ensure CodeMeter is not being blocked
  * Firewall prompts can be silently missed after macOS updates

==== 5. Check macOS Privacy / Network Permissions ====

  * Go to **System Settings → Privacy & Security**
  * Look for CodeMeter or Wibu entries and ensure they have network access

==== 6. Full Reinstall (Last Resort) ====

  - Uninstall TopSpin completely
  - Remove CodeMeter manually:
<code bash>
sudo rm -rf /Library/CodeMeter/
# Also remove LaunchDaemons
sudo rm /Library/LaunchDaemons/*codemeter*
sudo rm /Library/LaunchDaemons/*wibu*
</code>
  - Reboot
  - Reinstall TopSpin fresh


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