3. If clicking on a "Bad comms" warning button does not fix the problem, the SiTech software will need to be stopped and restarted. It is vital that all the SiTech GUIs are closed, and that they are reopened in the correct order, so follow [[#Starting SiTech software| this procedure.]]
4. The most common issue is '''loss of dome comms'''. There is a watchdog on the dome that causes it to close after five minutes of bad comms - sometimes the . A red warning message does not button will appear before labelled "Bad Dome Comms" in the dome automatically closesDome GUI - clicking it should solve the problem. After fixing If that fixes the problem with step 2 above, go to the browser TCS Advanced tab, and in the central panel click "TAKE CONTROL", then turn dome "Tracking" ON on the browser TCS Advanced tab. If step 2 doesn't restore comms, try step 3 aboveare not restored, then take control of the dome (click "Take Control" press Shutdown on the browser TCS Advanced tab), and make sure follow the full instructions on [[#Starting SiTech software| starting SiTech software]] to restart. Then reload the dome is open (browser TCS Advanced tab) and tracking run the telescope ("Tracking" ON on the browser TCS Advanced tab)startup procedure.