Direct answer
Guest networks usually block local-device discovery by design. Internet may work while printers and casting remain isolated.
What this covers
- The observed symptom matches this record
- Customer-accessible settings, connections and external components
- Diagnosis before reset, deletion or component replacement
What it does not cover
- ×A model-specific error code with a different documented meaning
- ×Internal electrical, battery-cell, gas, refrigeration or sealed-component repair
- ×A guarantee that every model exposes the same control label
Capture the exact symptom
ReversibleConfirm the phone/computer is on the guest SSID and the target device is on the primary LAN.
Run the smallest isolation test
ReversibleMove the trusted controller to the primary network or enable the vendor’s explicit guest-device sharing feature.
Correct only the proven cause
ReversibleKeep untrusted guests isolated; share only the intended device through supported controls.
Verify before changing anything else
ReversiblePrint or cast once from primary Wi-Fi and once from the approved guest-sharing path.
Evidence ledger
Sources behind this answer
Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.
Exact questions
Common follow-ups
What should I check before resetting anything?+
Confirm the phone/computer is on the guest SSID and the target device is on the primary LAN.
What is the safest isolation test?+
Move the trusted controller to the primary network or enable the vendor’s explicit guest-device sharing feature.
When should I stop troubleshooting?+
Do not disable firewall isolation globally or expose printer/cast ports to the internet.
Answer for the exact device and software version shown above.