You would have to open it because it is no longer functioning and was indeed functioning. Electrical circuits rarely stop functioning, as there are no moving parts. Warranty on a once-functioning electrical component will require opening a ticket with ezrobot support staff. If you connected something incorrect or accidentally shorted the pins, the comm board can be replaced.

In the meantime, open the case and ensure the magnets are still securely fastened and we'll go from there.

Dj just got your post, will open in morning per your post tonight, and post when done. Thanks ??

That's interesting DJ. EZ-Robot can tell when we use the hardware/software?

All magnet's (4) still glued in position. Did a test after putting all components completely back together and still have communication error. Test same as video no components connected. OH! While open all pin connections between mainboards checked to insure fully inserted male pins into female sockets.

Hmmm... I am thinking the same thing as @bob is.... Does ez robot keep track of our ARC and ezb4 usage?

I've seen more than a few posts from DJ solving user issues in the forums by going through their usage logs so for sure EZ-Robot has this information on hand. Alot of software will ask at install if its ok to report anonymous stats and logs but our ARC logs do appear to be linked to our email account or includes our user info. This is the only way he could answer questions in this manner that i can see. Someone should probably check out the "Terms and Conditions" of the software because it could very well be in there and that kinda makes it our fault for not knowing by not reading first. ... I think I've seen a movie about this..it didn't turn out well lol Merry X-Mas

@Rob_C - did you get your system working? @DJ, wondering if you saw my question in post #12?

@bhouston Not working, a replacement has been ordered, Thanks for asking (-: I assume I leave this post open until replacement received?

UPDATE: 12-30-2016

Order for Replacement: 12-28-2016 Order Placed/Confirmed Order Status: 12-29-2016 Order Being Processed Shipping Status: 12-30-2016 DHL Shipping Confirmation

Thank You DJ and Ken for your SUPPORT

Closing post