Portland Group FORTRAN license not being checked out on Linux Box

I have an older PGI FORTRAN version 12.4. I am trying to get the FORTRAN compiler to work on a new machine and I am getting an error when trying to compile . The errors are:
"LICENSE MANAGER PROBLEM: Failed to checkout license.
"LICENSE MANAGER PROBLEM: Invalid host.
The hostid of this system does not match the hostid specified in the license file.

The host ID listed from the license manager matches what the hostid command gives.

license manager version is v11.16.2
pgroupd is UP v11.16.2

Do you have any ideas or suggestions?

Regards,
Stephen

The Host ID I used is actually from the lmhostid command if that makes it clearer.

The error message is FLEXnet Licensing error: -9, 57

Should I be checking for port conflicts? Also, does the Ethernet Interface name come into play here?

Regards,
Stephen