I had ordered the D54250WYK unit and everything was working perfectly ok, except the IR. When on XBMC I would move down in the remote, the remote would move one or two lines when constantly pressed down and stop. Lots of key presses were being missed. I then replaced it with an external IR of Lenovo and that would work perfectly fine.
I went ahead and purchased another one from FRY'S and the new unit works perfectly smooth.
Earlier I had the previous edition of the NUC and the first unit had networking speed issues. That too had to be replaced after days of debugging. This gets me to think that the NUC is plagued with Quality build issues.
Was the replacement IR unit from FRY'S easy to install inside the NUC? I didn't realize that the IR module that comes with the NUC was replaceable, or even removable.
The IR is internal and not replaceable. I have changed the whole unit. Returned the earlier purchase from newegg. Paid for return shipment and then purchased the nuc for a higher price at Frys.
I did notice the manufacture date from newegg was 12/2013 and the one in Frys was 01/2014.
Out of curiosity has there been any change to the actual hardware (components or build process) that might explain why the newer NUC (01/2014 mfr date) behaved better?