I don't see too many MC XL CEREC tower communication glitches.  But it did happen today with the last patient of the day!  I heard the milling unit spinning without the familiar bur on porcelain sound.  I have experienced this more since going to RF connection from WiFi.  Fortunately, I have a second milling unit and proceeded with a normal mill while the first milling unit struggled and after 30 minutes we aborted the mill.  So what is the solution if your office only has one milling unit? 

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