Hello
I believe in the case you describe here, you have a server/floating license, with a restriction to certain host-ID's. This is different from a stand-alone node locked license.
Without knowing the exact deatails, I would say, you should set up the license as a server license, by using the variable SPLM_LICENSE_SERVER=28000@YourServer
Should you want to work outside the network, you should borrow the license on the client (guessing borrowing is enabled). Using the server license by just pointing to the license file, will not work in case the license file contains a Server line.
If you do not have borrowing on your license, contact GTAC or your Account mananger, to have this added to the license.
I hope this helps.
Kind regards,
Dennis