Internet access on both devices does not prove that Android screen casting can connect them. Google documents same-network requirements and explains that access-point or client isolation can prevent the devices from communicating.
Confirm the casting mode
This reference concerns casting an Android screen through Google’s supported workflow. Native media casting inside a particular player is a separate route with its own requirements. Record the Android device, receiver model and the action used to open the receiver list. Confirm that the receiver is powered and connected before changing anything about the viewing account.
Compare network membership
Read the network name on the sending device and receiver. Similar names can represent different guest and main networks. If both can browse or load apps, that establishes internet reachability, not necessarily local communication. Google specifically identifies AP isolation as a blocker for its screen-casting setup; guest, hotel and public networks can use it intentionally.
Do not disable isolation on a network you do not administer. Ask the owner whether a supported casting arrangement is available. A hotel may provide its own pairing method or may not support personal receivers at all. Follow the network operator’s instructions rather than inventing a router password or changing a managed configuration.
Use a legitimate comparison
On a home network you control, consult the router’s official documentation before changing isolation settings. Record the original configuration and change one relevant setting only. On a managed network, a permitted alternative network can provide a useful comparison, but it does not authorize moving or sharing the media account beyond its terms.
- Confirm the intended screen-casting mode and device compatibility.
- Check both devices’ actual network membership.
- Ask the network owner about client isolation if discovery fails.
- Retest the receiver list after the authorised change.
Distinguish discovery from media
If the receiver appears after network visibility is restored, you have narrowed a discovery problem. Starting the requested media still requires compatible app, receiver and authorised source behaviour. If discovery remains broken, report sender, receiver, network type and permission state to the appropriate platform support. Avoid describing the outcome as a Hot IPTV playback test: no account was accessed and no casting session was performed for this reference. Keep a native supported viewing route available when the guest network cannot support casting.