Thank you so much for the response Mayank. If the users were on-prem this would be easier but they are distributed across the country so most of them are on the corporate VPN. From what I understand the users have the AEM workbench locally installed on their system and directly connect to the on-prem server to work on their forms/workflows/etc. (I am not sure if this answers your question.) I am not the Administrator of the software or the server so I can check back with them to get those answers.
I was just hoping there were some documented minimum network requirements so I can determine that we are able to provide the minimum support for access to their server. Most of the folks are working but, there are a few of folks that are not. Again, thanks for your response.