End-user is unable to add Store into Receiver, unless the full Store path is appended.
Example
https://SF-FQDN/Citrix/<Store> - Add Store is successful
https://SF-FQDN - Add Store fails: After user gets prompted for credentials, an error message appears: "Cannot connect to server. Try again in a few minutes".
Complete the following steps to fix the issue:
Replace the old thumb value in the Authentication service Web.Config file with the thumbprint of the new Roaming Certificate:
(C:\inetpub\wwwroot\Citrix\Authentication\web.config)
(Recommended) Re-install StoreFront.
Clicking Generate Security Keys in the StoreFront console's Gateway node creates a new Roaming Delivery Services SSL certificate that is not trusted by the Authentication service. The thumbprint of the SSL certificate is not being updated in the Web.Config file under C:\inetpub\wwwroot\Citrix\Authentication.
You can notice in the following screen shot that it is still using old thumbprint. This must be changed to the thumbprint of the newly created Roaming Certificate.