"There is no Propellerhead Ignition Key connected to your computer right now.
Do you have a Propellerhead Ignition Key? If you do, you can insert it now and reload this page. If it doesn't show up right away, try to reload again in a few seconds.
If the key is inserted but not yet detected, just wait a few seconds and then reload this page."
did you try to manage your ignition key directly from the PH account or even directly from the reason menu to have access to your account ?
IF yes try this,
open authorizer apps on the connected computer then connect your dongle, it should be directly recognized
it works well for me.