Can you try running above curl command removing -d '{}' and check. And
also from connector actions try running action "Fetch Incidents" if this
runs successful. Also check this curl command works:curl -k -X POST
https://api-yourfqdn/public_api/v1/inc...
Can you try running this curl command to check with valid
credentials:curl -X POST
https://api-{fqdn}/public_api/v1/distributions/get_versions/ -H
"x-xdr-auth-id:{API_KEY_ID}" -H "Authorization:{API_KEY}" -H
"Content-Type:application/json" -d '{}'