Series 3: How do I configure advanced failure check on my CradlePoint router?

Beverly McRae

This article applies only to CradlePoint router models CBR400, CBR450, IBR600, IBR650, MBR1200B, MBR1400, and AER2100.If you are unsure of your router’s Series or Model number, please click here.This article was written based on Series 3 firmware version 5.1.0.Summary:Advanced Failure Check lets the router to actively verify the status of its interfaces, which leads to a quicker resolution of a problem if one is found. This article describes how to configure Advanced Failure Check on a Series 3 CradlePoint router.  Directions:

  1. Connect your modem to the CradlePoint router.
  2. Log into your router’s administrative console. If you are not sure how to do this, click here.
  3. Click on the Internet tab and select Connection Manager from the drop-down menu.           User-added image
  4. Select your modem within the WAN Interfaces list by clicking on its name. User-added image
  5. Click the Edit button to open the modem’s configuration screen. User-added image
  6. Within the WAN Configuration window, click on the General Settings tab and then click the down arrow to expand the Advanced Failure Check section.                                                            User-added image
  7. Set the desired Failure Check Interval. This determines how often the router verifies its connection on this interface. A lower value will lead to quicker detection of a potential problem, but will also use up more of the router’s resources and result in higher data usage.
  8. Click the down arrow next to the Monitor while connected field to select the desired failure check method.
    • Note: The recommended option for cellular modems is Passive DNS.
    • Note: If Active Ping is used for failure check, it is crucial to specify a stable IP address as the ping destination, such as                                                                                                User-added image
  9. Click Submit if any changes were made. Please note that your modem may briefly disappear from the WAN Interfaces list while it loads the new settings.
  10. Verify that Aggressive Modem Reset is enabled. Reference this article for more information.
Share Article: