Installation error for Adobe creative cloud desktop manager

confirm that you can connect to the secure adobe servers by reading, http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html

after clicking "link", do you see both logos?

if you can and still see a connection error try these steps, https://helpx.adobe.com/download-install/kb/common-network-connectivity-issues.html suggested by @Manan Joshi 

 if those all fail, white list the adobe network endpoints, https://helpx.adobe.com/enterprise/kb/network-endpoints.html

See the following link

https://helpx.adobe.com/creative-cloud/kb/troubleshoot-download-install-logs.html#error207

-Manan

The error 207 indicates communication problems with the Adobe servers.

Please see here for steps to check your internet connection: https://helpx.adobe.com/download-install/kb/common-network-connectivity-issues.html