
5 Troubleshooting
| Normal operation | In this state the USB LED is assigned to the downstream (RX) data channel (towards the | 
| during a session | USB connection). | 
| 
 | The ADSL LED is assigned to the upstream (TX) data channel (towards the ADSL | 
| 
 | channel). | 
| 
 | Both LEDs stay green. When an ATM cell is processed in a channel, the associated LED | 
| 
 | will go off for a short time. | 
| USB bus congestion | 
 | 
| The USB LED flashes red during a session in case of USB bus congestion. | 
Solution table
| Indication & Problem | Solution | 
| 
 | 
 | 
| Speed Touch™ USB | Verify the SpeedTouch™ connections. | 
| does not work: | Check if the SpeedTouch™'s cord is damaged in any way. | 
| No LEDs light up. | When using a portable computer in battery mode, it is | 
| There is no power | possible that its USB port is not powered. Refer to the | 
| supplying connection. | portable's User's Guide for more information. | 
| 
 | Check if the SpeedTouch™ is not connected to a | 
| 
 | |
| 
 | User' Guide for more information. | 
| 
 | 
 | 
| Speed Touch™ USB | Verify your computer is running one of the supported | 
| installation failed. | OSs and that it meets the according minimum require- | 
| 
 | ments. | 
| 
 | Check whether the SpeedTouch™ is not connected to a | 
| 
 | |
| 
 | User's Guide for more information. | 
| 
 | 
 | 
| USB LED flashes red, or | Your USB port congests, meaning that too much traffic is | 
| stays solid red. | passing through the port. Avoid using multiple high | 
| 
 | speed USB devices, e.g. scanners, speaker, etc. during | 
| 
 | heavy duty, e.g. a data download. | 
| 
 | 
 | 
| Both USB LED and | Power On Self Test (POST) failed. Check whether the | 
| ADSL LED are solid | connections are correctly made. | 
| amber. | 
 | 
| 
 | 
 | 
| 40 | 3EC 36714 BAAA TCZZA Ed. 02 | 
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