Serial port communication issues
3. Select the desired port.
Digi Passport
a. Click the desired port number. The Serial port users logged on list dialog appears.
Digi CM
a. Click the desired port number.
b. Click Port User Management. The Serial port users logged on list dialog appears.
4. Click the selection box in the box for the connection.
5. Click Kill.
Kill connection for Digi Passport
Digi CM and Passport Troubleshooting Guide
Kill serial port connection
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