Problem(s) Encountered:

The telescope rather frequently fails to complete a slew -- it just stops somewhere midway and rotates the dome to wherever it''s pointing.  The cure is simply to re-send the coordinates and send it again.  I didn''t notice any obvious error message except that the telescope wasn''t pointed where it was supposed to be.

Solutions:

Cause or coincidence?  “I figured out why the telescope was stalling in mid-slew, or at least a correlation.  I often start slews before turning off the guider, because it used to not make any difference.  If you do that with the new TCS, the slew immediately hangs.  [Thorstensen]