AT&T Syn248 SB35020, Руководство по установке и настройке

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Syn248 Installation and Configuration Guide Back to Contents
Troubleshooting 86
Figure 25. Deskset Reset Button
Resolving General Functional Issues
To resolve a blank screen or device that does not work at all:

Ensure the AC plug is plugged into an electrical outlet not controlled by a wall
switch.

Verify that the AC power outlet has power. Try plugging in some other AC device.
If nothing works, contact an electrician or use another power outlet.

Verify that the DC plug is plugged into the power jack on the device.

The system devices are not immediately active when powered up and after a
power interruption. Allow at least 30 seconds for the device to boot up.

If this is a Gateway, check the LED status. The POWER LED should be GREEN .

For Desksets connected to PoE, check whether any PoE switch ports have been
configured for devices that require less power. If so, configure your PoE switch
to auto-detect device power requirements. For Deskset PoE specificiations, see
“Appendix C: Technical Specifications” on page 105 .
To resolve a sluggish, unresponsive, or unusually behaving device:
Reset the device by pressing the RESET button for less than five seconds (see Figure 25
on page 86 ) or by removing and restoring AC power.
To resolve an incorrect system clock:
If the system clock displays the wrong time, the system lacks Internet access for
acquiring current time data.
1. Log on to the WebUI as administrator and click
System Basic Settings
.
2. In the
System Time/Date Options
section, specify a local Network Time Protocol
(NTP) Server, or manually set the time. Then click .
Reset Button
Pressing the RESET button for more than five seconds will erase all data and
settings.