I'm hoping someone can point me in the right direction with a problem I've run into a couple of nights in a row.  Guiding seems to suddenly stop after running successfully for at least a couple of hours.  I'm using KStars/Ekos 3.5.2 and PHD2 (2.6.9 dev 4).  The Ekos log includes the following at the point where I seem to have run into problems:

[2021-04-15T01:38:15.392 PDT DEBG ][           org.kde.kstars.indi] - ZWO CCD ASI120MM-S : "[DEBUG] BLOB transfer took 0.0110913 seconds "
[2021-04-15T01:38:15.392 PDT DEBG ][           org.kde.kstars.indi] - ZWO CCD ASI120MM-S : "[DEBUG] Upload complete "
[2021-04-15T01:38:15.437 PDT DEBG ][           org.kde.kstars.indi] - ZWO CCD ASI120MM-S : "[DEBUG] StartExposure->setexp : 1.500s "
[2021-04-15T01:45:12.697 PDT DEBG ][           org.kde.kstars.indi] - INDI Server:  "2021-04-15T08:45:12: Client 13: read EOF"
[2021-04-15T01:45:12.787 PDT DEBG ][           org.kde.kstars.indi] - INDI Server:  "2021-04-15T08:45:12: Client 13: shut down complete - bye!"
[2021-04-15T01:45:12.788 PDT DEBG ][           org.kde.kstars.indi] - INDI Server:  ""
[2021-04-15T01:45:13.543 PDT DEBG ][           org.kde.kstars.indi] - ZWO CCD ASI120MM-S : "[DEBUG] ASIGetExpStatus failed. Restarting exposure... "
[2021-04-15T01:45:13.648 PDT DEBG ][           org.kde.kstars.indi] - ZWO CCD ASI120MM-S : "[DEBUG] StartExposure->setexp : 1.500s "
[2021-04-15T01:45:13.732 PDT INFO ][           org.kde.kstars.indi] - ZWO CCD ASI2600MC Pro :  "[INFO] Exposure done, downloading image... "
[2021-04-15T01:45:13.743 PDT INFO ][           org.kde.kstars.indi] - ZWO CCD ASI2600MC Pro :  "[INFO] Download complete. "
[2021-04-15T01:45:13.754 PDT DEBG ][           org.kde.kstars.indi] - ZWO CCD ASI2600MC Pro : "[DEBUG] Uploading file. Ext: fits, Size: 34885440, sendImage? Yes, saveImage? No "
[2021-04-15T01:45:13.896 PDT DEBG ][           org.kde.kstars.indi] - ZWO CCD ASI2600MC Pro : "[DEBUG] BLOB transfer took 0.10323 seconds "
[2021-04-15T01:45:13.897 PDT DEBG ][           org.kde.kstars.indi] - ZWO CCD ASI2600MC Pro : "[DEBUG] Upload complete "
[2021-04-15T01:45:13.954 PDT DEBG ][           org.kde.kstars.indi] - processBLOB() mode  0
[2021-04-15T01:45:13.957 PDT INFO ][           org.kde.kstars.indi] - "FITS" file saved to "/Users/xxxx/Desktop/EkosCapture/MkChain/Light/MkChain_Light_240_secs_049.fits"
[2021-04-15T01:45:14.152 PDT INFO ][   org.kde.kstars.ekos.capture] - "Download Time: 0.26 s, New Download Time Estimate: 0.99 s."
[2021-04-15T01:45:14.213 PDT INFO ][   org.kde.kstars.ekos.capture] - "Received image 49 out of 75."
[2021-04-15T01:45:14.248 PDT INFO ][   org.kde.kstars.ekos.capture] - Dithering...
[2021-04-15T01:45:14.248 PDT INFO ][   org.kde.kstars.ekos.capture] - "Dithering..."
[2021-04-15T01:45:14.282 PDT DEBG ][   org.kde.kstars.ekos.capture] - Guiding state changed from "Guiding" to "Dithering"
[2021-04-15T01:45:14.282 PDT INFO ][     org.kde.kstars.ekos.guide] - "Dithering in progress."
[2021-04-15T01:45:14.285 PDT DEBG ][           org.kde.kstars.indi] - ZWO CCD ASI120MM-S : "[DEBUG] Uploading file. Ext: fits, Size: 1235520, sendImage? Yes, saveImage? No "
[2021-04-15T01:45:14.285 PDT DEBG ][           org.kde.kstars.indi] - ZWO CCD ASI120MM-S : "[DEBUG] BLOB transfer took 0.00306767 seconds "
[2021-04-15T01:45:14.285 PDT DEBG ][           org.kde.kstars.indi] - ZWO CCD ASI120MM-S : "[DEBUG] Upload complete "
[2021-04-15T01:45:14.285 PDT DEBG ][           org.kde.kstars.indi] - ZWO CCD ASI120MM-S : "[DEBUG] StartExposure->setexp : 1.500s "
[2021-04-15T01:45:14.286 PDT INFO ][ org.kde.kstars.ekos.scheduler] - "Job 'MkChain' 75x240\"  sees 49 captures in output folder '/Users/xxxx/Desktop/EkosCapture/MkChain/Light'."
[2021-04-15T01:45:14.286 PDT INFO ][ org.kde.kstars.ekos.scheduler] - "Job 'MkChain' 75x240\"  requires a dither procedure."
[2021-04-15T01:45:14.288 PDT INFO ][ org.kde.kstars.ekos.scheduler] - "Job 'MkChain' estimated to take 01h 50m 15s to complete."
[2021-04-15T01:45:14.288 PDT INFO ][     org.kde.kstars.ekos.guide] - "PHD2 warning: After 16.5 sec the camera has not completed a 1.5 sec exposure, so it has been disconnected to prevent other problems. If you think the hardware is working correctly, you can increase the timeout period on the Camera tab of the Advanced Settings Dialog.\nPHD will make several attempts to re-connect the camera."

It looks like the problems start around 1:45:12 with "Client 13: read EOF" (which is about 7 mins after a 1.5s image is requested from the ASI120MM-S) and it doesn't recover after that.  There's a similar entry in the log for the other night where guiding just seemed to stop  If someone can offer some advice as to what might be causing this, I'd appreciate it. 


 

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