reset-remoteaccess will log off any users logged into the VM. If you want to reset the RDP password try setup-remoteaccess. Running setup again should reset the password the second-time through.
The usage, in vcsadmin, is displayed with:
commandshow setup-remoteaccess
An example would be: commandrun MyHost-PoolVm-1 setup-remoteaccess deploymentid=101 remoteaccesmethods=RDP
The deployment id is available from scheduledeploymentlist