I have a multisite WordPress setup with CiviCRM 4.7.23 and I am unable to create a successful cron job. I tried CLI with all parameters (including -s) and with no parameters but each time I get no output and CiviCRM says cron was not executed.
I tried the URL method
and same thing.
I tried, just for fun, the cli file via a browser and I got
cli.php can only be run from command line.
which is at least correct. :)
The site in question is hosted on CiviHosting and the setup there is known to support both CLI and URL cron jobs for single-site setups.