After using my Roku 2 video player for about 2 weeks, the remote suddenly stopped working. I’m not sure what caused this issue, but the remote certainly needed to re-sync with the box. After verifying that the batteries weren’t the issue, I did the following steps to get it working again.
1. Open the battery cover on the back of the remote.
2. Press the small sync button below the battery compartment.
3. Using a paper clip, press the reset button on the back of the Roku box. Optionally, you may unplug the power cord from the unit then plug it in again.
4. Ensure the remote control is in range of the box. Once the device starts, the remote should resync and work again.
If these steps didn’t work, you may want to try to factory reset the Roku 2.