How do you power off (not restart) the Roku Sound Bar? I have gone to Settings, but there is no option to power off like my other Roku devices
You don't, the only roku ever to have a power command that wasn't a roku tv, is the roku 4. Just leave it on, it goes to sleep on its own.
I haven’t found an option to turn it off, however, there is an option to restart it. Easy enough: settings>system>system restart
it’s helped with the occasional connection issue. good luck!
If you want it off because the lights on the front bother you can turn off the front panel lights:
settings> system> advanced system settings> Led> off