When you first applied for an account on Shaheen, you submitted on the application a list of IPs or host names that you wished to connect to Shaheen from. These IPs were assigned to your Shaheen account when it was created. You are seeing the error message because the IP you are currently connecting from is not included in the list of IPs associated with your Shaheen account.
If at any time you change work location or sign up with another Internet provider, you will need to inform us of the new location that you need to login from. This can be a host name, a domain name, an IP address or an IP address range. Please contact email@example.com, letting us know the new location(s) that you wish to login from.