Dear Glenn,
Let me provide you a screenshot:
I can easily log onto the SAP applications, but not CRM unfortunately. I use WINDOWS. I do have a username and passwords, for each application you see above, but I am not able to use the CRM applications at home. The consultants told me that I need to be assigned with a business role to be able to connect to CRM applications using VPN.
Please help me 
it is highly appreciated already.