Is there a general checklist of things that can ‘break’ a previously working citrix xenapp connection. E.g. patches/other. Our remote access facility requires users to have citrix receiver/workspace installed on their home PC’s, they visit a specific login page, enter domain credentials, answer an MFA request and login. Since around 10 days ago, half the workforce can still login fine, others are presented with a cannot complete your request error and they cannot login to their citrix desktop based on xenapp servers.
As the users are using personal Windows 10 computers, there are limited checks that can be performed, so from experience a list of "events" or "factors" that could break things would be useful as a checklist to rule possibilities in or out.