If you have issue troubleshooting the connection to the API using your client application, you can use download and install the cURL tool and test the API call:

curl --user customerId:passwordhttps://api.pinnaclesports.com/v1/fixtures?sportId=29

Replace customerid and password with the actual values.

The response can help you narrow down the issue, if the issue is with the network connection or your client application.