Check the symptom before changing settings
Confirm whether the receiver is entirely absent or appears but fails during video playback. Google’s local-network guidance concerns discovery. If the device already appears and connects, the failure may be later in the media path. Keep that distinction in your notes so a permission check does not become a catch-all explanation.
Also identify the receiver and the intended network. A computer and receiver on isolated or different networks may not see one another even when each has internet access. Ask the network owner about managed or guest environments.
Use the documented macOS control
Google documents the permission for macOS 15 and later. In System Settings, open Privacy & Security and then Local Network. Check whether Chrome is allowed to discover devices for the casting task. Approve only the application you intend to use, then return to Chrome’s supported cast flow.
This permission is not a streaming subscription, a firewall exemption for every program or a way to unlock a title. It allows the application to communicate with local devices for discovery.
Retry a controlled connection
- Confirm ordinary browser playback for the permitted media.
- Open the casting control in Chrome.
- Choose the intended tab or screen source.
- Select the correct receiver if it appears.
- Observe discovery, connection and media playback separately.
If the receiver remains absent, follow Google’s receiver-discovery support rather than repeatedly granting unrelated privacy permissions. A device visible through a different protocol is not necessarily a Google Cast receiver.
Keep privacy and evidence together
Before sharing a full screen, close private windows and notifications. Record Chrome/macOS versions and the receiver model when asking for help. A screenshot should show the absence or error without exposing account values. If the issue changes after granting permission, describe that observation without claiming that every source or player now works.
The documented setting was checked on 4 November 2026. No Mac, receiver or IPTV Canada stream was physically tested for this article. Use the current Apple/Google interface if system labels differ after a future update.
Related questions
Does local-network permission pay for or activate media access?
No. It supports receiver discovery; service access is separate.
What if the receiver appears but only the video fails?
Record that later stage and investigate the supported media/output path rather than assuming a discovery failure.
Sources and scope
Scope notes distinguish published documentation, supplied information and editorial methods. They do not report a hands-on service test.
