Edit the safe.lic file so that yyyy on the VENOR line is the port you want to open for the communication to the client machine running FME. The port in the SERVER line (xxxx) can also be set but this is necessary only for 3-Server redundant configuration.
SERVER servername 000c290de0df xxxx
VENDOR safe PORT=yyyy
The port number for the SERVER and the VENDOR must be different. The SERVER port is typically between 27000 and 27009, and the VENDOR port number is typically between 1700 and 8000.
If the VENDOR port is specified on the floating license server the FME running on the client machine must specify this port as well. To do this in FME 2011 using the FME Licensing Assistant when you are prompted to "Connect to a Floating License Server " you can enter the port number like this:
LicenseServerName:yyyy
(where yyyy is the port number used in the VENDOR line of the safe.lic file).
In earlier releases of FME the fme_license.dat file in the <FME>\licenses\ directory will also need to be edited manually like this:
SERVER LicenseServerName Any yyyy
(where yyyy is the port number used in the VENDOR line of the safe.lic file)