Free servers are notoriously unstable. Because they are often run by individuals on standard home internet connections with limited bandwidth or hosted on compromised machines, they cannot handle a large number of users. When too many people connect to a free server, the "ping" (response time) increases. In TV encryption, keys change every few seconds; if the key doesn't arrive in time, the screen freezes or pixelates (known as "freezing").
: Defines who can access the decrypted streams from your box. Oscam Free Server
Using an Oscam free server comes with several benefits: Free servers are notoriously unstable
Keeps the connection to the server active to prevent channel freezing. The Major Risks of Using Free OSCam Servers keys change every few seconds
The temporary credentials provided by the free server generator website.