Find out what is affected
Check whether one device or every device has the issue. Try another website or application to separate a service problem from a connection problem.
Compare locations
Note whether the connection works near the router but fails in a particular room. This helps identify a coverage issue.
Check the physical connections
Confirm the router and modem have power and their cables are seated. Avoid resetting business equipment without approval.
Record the pattern
Write down when the issue occurs, the device models and any equipment recently changed. Share those details in your support request.