Error: Your activation request was denied for the following reason: Client activation is not allowed.
In contrast to the error received when trying to activate a Node-Lock license using the Lumerical FlexNet License Manager utility discussed here, attempting to activate a Floating license using the product Configure license utility will result in a similar error message indicated here.
Floating licenses can be activated using the FlexNet License Manager, as outlined in the instructions in our Knowledge Base:
https://kb.lumerical.com/installation_and_setup_floating-trusted-storage.html#float_online_act