My Creative Cloud Desktop shows an error with "No internet connection". Our IT has checked the issue with support of the Adobe Support Community:
The Windows 10 client on which Creative Cloud is installed does not have direct internet access and must necessarily use a web proxy. The web proxy is configured using a PAC file, and the PAC file is made available to the client via WPAD URL. According to the following article this should be supported.
In the PAC-File as well as on the Webproxy all URLs, which are listed in the following article, are registered and thus released for the client.
However, accessing applications or fonts from Creative Cloud Desktop does not work. No blocked connections are visible in the logs of the web proxy and firewalls.
Is our setup basically supported by Adobe? According to the help articles this should be the case.
Is there a possibility to do a kind of connection check to check if all requirements are met?
if you have a non-current os, https://helpx.adobe.com/x-productkb/multi/eol-tls-support.html#sa_src=web-messaging000
otherwise, confirm that you can connect to the secure adobe servers by reading, http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html
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
if those all fail, white list the adobe network endpoints, https://helpx.adobe.com/enterprise/kb/network-endpoints.html
Our IT department said: "It would be interesting to know whether you can enter a fixed web proxy in Adobe CC. That would be the easiest option, since the software would then know that all requests to the Internet have to go via proxy. Currently we have to use another mechanism (PAC, Proxy Auto-Config). Based on a list the PC knows which requests have to be sent to the proxy. However, this list must then be complete and always kept up to date. In our case, we have entered the URLs listed by Adobe and must assume that they list all the necessary URLs."