Question:
Why do I get an error when I enter the License Key for my print server in my browser?

Answer:

The most probable cause is that you are using "leading zeroes".

Your license key is generated uniquely for the MAC address for your LAN FS3, Intermate100 or Intermate101. The key consists of four digit groups separated by periods. When it is generated, each group in the key will always have 3 digits.
For example: 167.045.093.281

When you enter the key in the data entry field labelled “License Key”, you must not use any leading zeroes.
For example: 167.45.93.281.
For further information, please consult the Print Server Administration Manual for your product.