If you are seeing one or several message channels in a 'Waiting to Restart' mode similar to below, the cause can often be a lock file that has been left hanging around in $PPWORK:
1740 SYSTEM Channel Waiting to restart (not running: POWERpackTrans_10938)
1835 AMON Channel Waiting to restart (not running: iss_fileListener_17302)
Check for the following file in $PPWORK and if it exists, remove it:
Once this file has been removed, the message channels should come up without the need of a restart.