E2137 Cmd Rej: Port must be inhibited to change comm. attributes
The terminal port must be inhibited before the type, baud, prty, sb, and fc parameters can be changed.
Recovery
Determine the status of the terminal. Enter the rept-stat-trm command.
Inhibit the terminal port as necessary. Refer to the Maintenance Guide and to the Database Administration - System Management User's Guide for assistance.
Re-enter the chg-trm command, specifying a valid combination of parameters.