I've added the configuration. and I can see logs in the cmc but, can't add a node.
Make sure you have a connector reading the logs. If you're seeing them in CMC then the logs are making it to SEM, but you need to have a connector normalizing the logs for SEM to be reading them and adding the node.
For reference as well, the connector to read the logs for syslog nodes needs to be added at the appliance level and not the node level. If you set it up with the default configurations and are still not seeing your data pulled in to the SEM console, you likely need to change the log store the connector is reading. You can have multiple of the same connector configured to have one to each log store that receives logs from those types of devices.
-ChrystalT
Loop1 Systems: SolarWinds Training and Professional Services