Why does my DVR reboot when a CableCARD is inserted?
If the box reboots when you insert a CableCARD into a slot please complete the following steps:
Step 1: Remove the CableCARD(s) from the slot(s). After the box recovers from the current reboot, does it begin to reboot again?
Step 2: Insert the CableCard into slot 1 to test for a reboot.
Step3: Series3 and HD boxes: Remove the CableCARD from slot 1 and insert it into slot 2 to test for a reboot. If the CableCARD causes a reboot in both slots, contact CableONE.