Direct answer
If other devices work, the modem and provider are probably healthy. Check the failing device’s IP address, VPN, private DNS, captive portal and saved network profile.
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
ReversibleCompare the device on another Wi-Fi network and note its assigned IP, date/time and VPN status.
Run the smallest isolation test
ReversibleForget and rejoin only the affected network, disable VPN/private relay for a test and renew automatic IP/DNS.
Correct only the proven cause
ReversibleCorrect the app/profile blocking traffic or update the device; reserve network-wide resets for all-device failures.
Verify before changing anything else
ReversibleLoad two sites and one app after sleep/wake on the repaired connection.
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?+
Compare the device on another Wi-Fi network and note its assigned IP, date/time and VPN status.
What is the safest isolation test?+
Forget and rejoin only the affected network, disable VPN/private relay for a test and renew automatic IP/DNS.
When should I stop troubleshooting?+
Do not remove work/school VPN or management profiles without administrator approval.
Answer for the exact device and software version shown above.