Hello Team,
Generate Diag?More infoIf filing a support case, click here to generate a diag.
The list of possible actions that might cause that error is limitless. Fortunately, since it's Splunk Cloud you don't have to do anything other than contact Splunk Cloud Support. Unless you're using Hybrid Search. If that's the case then you may have a network error preventing the search head from contacting Splunk Cloud.