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ADSL connection broken

Problems with an ADSL connection can be caused either by the physical link or by the PPP protocol layer. The log file message Timeout waiting for PADO packets indicates a problem with the physical link. An ADSL diagnostics function is provided in menu "Monitoring > Network". It checks the physical link. If the physical link appears to be ok you should consider the article PPP log for PPP diagnostics.
Problems with the physical link can be caused by DEFENDO, the modem or the provider. To track the problem down you should check the following things:
  • The service "ADSL (PPP over Ethernet)" in menu "System > Services" is running. Start it otherwise.
  • The "SYNC" light of the DSL modem indicates no problem. It depends on the actual model how the status is indicated. If "SYNC" is off or red it usually indicates that the connection between modem and provider is offline. The same applies if "SYNC" is blinking regularly for more than 1 minute. Check the cable between modem and splitter. Power cycle the modem and wait another minute. If this doesn't solve the problem, please contact your provider.
  • Make sure the network interfaces of the modem and/or DEFENDO indicate a link. Otherwise you should check connectors and cabl. Consider to use a different cable. Assure yourself that you use the right cable type (standard network cable or crossed cable). Contact technical support otherwise.
If the measures above didn't solve the problem there's only one option left before contacting your provider. Please try the following:
  • Disconnect the network cable and then the power cable of the ADSL modem
  • If you want to be absolutely sure then shutdown DEFENDO, too. Unplug the power cable after DEFENDO switched itself off
  • Wait for 1 minute
  • Re-plug the modem, the power cable first
  • If after about 1 minute the problem is still there, please contact the ADSL provider
  • Ask for a port reset if there's no known trouble

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DEFENDO forces a collection of best-of-breed security modules like firewall, VPN, proxies, virus scanner and anti spam system to interact for one purpose:
To be protected from all online threats and unwanted contents like malicious code, spam and hacker attacks.

Flexible

Each IT scenario is different. The DEFENDO product family will adapt precisely to your demands.
DEFENDO applies for simple Internet connections of small companies, for headquarters / branch office WANs, as well as for complex multi-tiered firewall systems.

More good reasons

  • No backdoors
  • More than 20 years of Internet security experience
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  • Support by our development engineers
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