Identify which limit the message describes
The device-limit article distinguishes a list of registered devices from the number currently playing. Its published Standard and Premium examples allow two and four concurrent streams respectively, within an account registration allowance of five devices. Keep the plan name with these figures. Do not assume an unmentioned promotional or advertising plan has the same rules merely because it uses the same application.
For a new-device registration problem
OSN+ directs viewers to the mobile app’s Settings, Account Settings and Devices area to review registrations and remove devices no longer used. Inspect the entries before removal so you can recognise the intended television or phone. Removing an obsolete registration addresses space on that list; it does not establish that a channel, film or enhanced format has been added to the account.
For a simultaneous-playback problem
The publisher says to stop playback on another device before starting the next when the concurrent allowance is exceeded. Consider a household where several registered screens are idle and only the permitted number are playing: registration alone is not the error. Conversely, deleting an unused phone from the list need not end an active session running on a different television. Match the action to the displayed limit.
For an unfamiliar device entry
Keep a note of the device label and the time you noticed it, then use the service’s account-security support if you cannot identify the registration. A familiar model name is not proof of a particular person’s access, and this article does not inspect the account. Review account identity before changing plans: an upgrade is a purchasing decision, while list management and closing an existing stream are account-use actions.
Questions, answered
Does removing an unused device always free a stream?
No. A registration slot and a currently running playback session are different.
Are these numbers universal for every promotion?
No. The cited help names Standard and Premium; verify the actual offer.