Dear Experts

My company is having SAP B1 9.2 , also Forti Gate VPN is configured with the server,

and via Forti Gate we had linked 4 branches which in far locations.

when i try to install the SAP client directly in the Branch sys, and try to Connect , it is not connecting , so we are using 'Paralla Remote' named 3rd party tool ,

how can i connect the client in branch, in simple way like Lan Connection insted of using 3rd party Remote SW