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Troubleshooting
This shows you the differences between two versions of the page.
adsl:troubleshoot [2010/11/26 13:47] mats |
adsl:troubleshoot [2010/11/26 14:00] (current) mats |
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If this never seems to happen, see the [[troubleshooting:internet_access_problems|internet access problems]] page for how to carry on the troubleshooting. | If this never seems to happen, see the [[troubleshooting:internet_access_problems|internet access problems]] page for how to carry on the troubleshooting. | ||
It may be a problem with the VPI/VCI settings or some DHCP or PPPoE/PPPoA problems. | It may be a problem with the VPI/VCI settings or some DHCP or PPPoE/PPPoA problems. | ||
+ | \\ | ||
+ | \\ | ||
+ | \\ | ||
The ADSL connection, when successfully established, will stay up "forever" as long as the modem is powered on. | The ADSL connection, when successfully established, will stay up "forever" as long as the modem is powered on. | ||
- | However, disturbances can happen on the telephone line that may force the modem to drop the link. | + | However, disturbances can happen on the telephone line that may force the modem to drop the link and to retune to the apparently noisy line. |
In the ADSL language this is a //retrain//. | In the ADSL language this is a //retrain//. | ||
This is visible on the display: the ''**Hi**'', ''**Lo**'' or ''**AC**'' text disappears and is replaced by one or more dots (see above).\\ | This is visible on the display: the ''**Hi**'', ''**Lo**'' or ''**AC**'' text disappears and is replaced by one or more dots (see above).\\ | ||
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It is not always clear what causes such a disturbance. | It is not always clear what causes such a disturbance. | ||
- | Surprisingly often, the cause is to be found within the customer's premises (i.e. inside the building): | + | Surprisingly often, the fault is actually to be found at the customer's premises (i.e. inside your own building): |
* Is the ADSL connector and the [[adsl:start#Splitter|splitter]] properly connected?\\ :!: Generally, the ADSL modem should be connected to the 1:st (main) phone jack to get as clean signal as possible. | * Is the ADSL connector and the [[adsl:start#Splitter|splitter]] properly connected?\\ :!: Generally, the ADSL modem should be connected to the 1:st (main) phone jack to get as clean signal as possible. | ||
* Are there more devices, apart from phones, attached to this telephone line, such as fax machines, answering machines etc? If so, try disconnecting them one at a time to see if the problem disappears. | * Are there more devices, apart from phones, attached to this telephone line, such as fax machines, answering machines etc? If so, try disconnecting them one at a time to see if the problem disappears. |