Hi FREDRICKMUMBA99884 , I hope you are doing well. I checked the sandbox and is available to reserve now. Are you still facing issues in reservation? Pls check and update.   If you find my reply solved your question or issue, kindly click the 'Accept...

Hi sujeet20011988, I would try and see if similar issue is faced using Mozilla browser too? Also ,the Cisco DNA Center GUI is compatible with the following HTTPS-enabled browsers: Google Chrome: Version 73.0 or later. Mozilla Firefox: Version 65.0 ...