Yealink CP920 User Guide861. Navigate to Menu->Status->Warnings.2. Select Auto-p credentials failed, and then tap Re Provision.3. Enter valid provisioning credentials, and then tap Save.The phone prompts you whether to provision now.4. Tap OK.Clearing WarningsYou can temporarily remove the warning icon from the status bar. However, the warning icon appears again after thephone reboots or the phone has a new warning if the issue is not fixed.Procedure1. Navigate to Menu->Status->Warnings.2. Tap Clear Icon.Diagnosing the NetworkThe wrong network settings may result in inaccessibility of your phone and poor network performance. Your systemadministrator may ask you to use the ping or trace route to troubleshoot network connectivity problems.TopicsChecking the Network Using “Ping” MethodChecking the Network Using “Trace Route” MethodChecking the Network Using “Ping” MethodProcedure1. Navigate to Menu->Features->Diagnostics->Network->Ping.2. Enter the desired IP address or URL in the Ping IP or URL field.3. Tap Start.The screen displays the network status information.4. Tap Back to go back to the preview screen.Checking the Network Using “Trace Route” MethodProcedure1. Navigate to Menu->Features->Diagnostics->Network->Trace Route.2. Enter the desired IP address or URL in the Trace Route IP or URL field.
