GOTO feature not working for Ioptron CEM25ec

pvestudio105

Okay this is something new.
I have had my asiair pro for a couple of years now, on my Ioptron cem25ec with a WO Z61ii, ZWO EAF, ZWO EFW, ASI2600MC pro with ASI120MC-S. Everything has worked and played well together until recently. I have the latest software update(s) for the ASI air pro installed on my iPad.
The other night, after going through the normal routine balancing, polar alignment, focusing, and guiding. After finding my target inside of the ASIair pro with the GoTo feature, it would never slew go to the target position. It would not even move (although the screen indicated that it was moving to the correct position and trying to center several different times). However, I was able to still control my mount through the 4 arrow key (under the preview screen) and asiair pro continued to recognize my ioptron CEM 25EC like always. I shut down rebooted restarted everything four times that night, before finally giving up! Any suggestions or anyone else having this problem, not slewing to the target via GOTO screen feature. Oh also, Yes, I have turn off the DST on the Hand Control too.

Byrdsfan1948

pvestudio105 I have the same Ioptron cem25ec mount as you. The rest of my equipment with the exception of your camera is essentially the same. As you mention for the most part everything has played reasonably well with my Asiair Pro.
With the exception of issues I have regularly had using PLAN mode. It has been very typical for some sort of failure to occur between the Asiair Pro and my Ioptron cem25ec mount. The result is the mount failing to Go To the next object in my PLAN. At that point the PLAN fails to continue. I have tried to no avail everything I could think of to solve that problem, and for certain connections are solid, and cables etc are good.
Out of desperation, I tried using my back up OS card. I was wondering if it were possible that a somewhat corrupt OS might still for the most part allow the Asiair Pro to largely function as it should, but perhaps be the source of my PLAN mode issues.
Unfortunately due to the very short nights this time of the year, and in my case endless cloudy cloudy nights, I have only had one chance to test my back up OS out in PLAN mode. The result that evening was that the PLAN functioned correctly. A very good sign, but obviously that could just have been just a stroke of good luck that evening as well.
In your case since your failure seems easily simulated I'd suggest you try swapping out your card and try your back up OS.
I'm no software engineer so I have no idea if it is possible for the OS to be corrupted in some way that allows the Asiair Pro to function largely as it should, but also perhaps be the cause some random failures. But since giving this a try is so simple, it worth the few minutes involved to try.
While we are on this subject and in no way trying to hi jack your post, I am wondering if anyone out there might have some idea if the Asiair Pro OS could be corrupted in such a way so as to still largely function properly, yet also be responsible for so many of the random failures we read here about?
Good Luck, Al

pvestudio105

Thanks I will try switching back over to the backed up OS.