Starting from version 7, it is necessary to renew your subscription to keep the software functional and ensure your NoMachine servers remain operational. Once your subscription period expires, the software will cease to function,  and you will no longer be able to establish connections. 

 

With the release of NoMachine 9, all subscriptions are continuous. If you now purchase a NoMachine subscription from the NoMachine Store using a credit card your subscription will renew automatically, and you will be billed at each renewal—this means recurring payments are enabled by default.

 

 

How do I renew my subscription? - important information to know about NoMachine Subscriptions for NoMachine 9 and later

https://kb.nomachine.com/AR06W01287

 

Purchasing a subscription from the NoMachine for the Enterprise range

https://www.nomachine.com/AR10K00711