Find the boundary
Does it affect calls, texts, data or all three? Is Wi-Fi working? Does the same problem happen outdoors or in another location? These observations help distinguish a local issue from a device setting.
Check the network notice
Look for current maintenance or incident information on the provider’s status page. A predicted-coverage map and a live status report answer different questions.
Make reversible checks
Inspect flight mode and the selected SIM, restart the device and confirm software and provider settings. Avoid a factory reset or deleting an eSIM as an initial experiment.
Escalate with a record
Tell the provider when it began and what has already been tested. If several nearby lines are affected, mention that observation. We explain the process; the provider investigates its network.
Continue with the source
Primary referenceRead current provider terms before making an account or service change.