ASI2600mm Air exposure failure issues

Eric

So this problem has been happening for the last few months, unfortunately we don't get enough consistently clear nights to try different things, but it seems like since v2.5 of ASIAir my 2600mm Air camera (and at times my 2600mc Air camera) has been having exposure failures which result in the premature ending of a plan session. Here is a portion of the log from a few nights back where the issue happens:

2026/04/15 02:08:12 Exposure 120.0s image 89#
2026/04/15 02:10:15 Exposure 120.0s image 90#
2026/04/15 02:12:19 [Guide] Dither
2026/04/15 02:12:19 [Guide] Dither Settle
2026/04/15 02:12:28 [Guide] Settle Done
2026/04/15 02:12:28 Exposure 120.0s image 91#
2026/04/15 02:14:31 Exposure 120.0s image 92#
2026/04/15 02:16:34 Exposure 120.0s image 93#
2026/04/15 02:18:37 [Guide] Dither
2026/04/15 02:18:37 [Guide] Dither Settle
2026/04/15 02:19:07 [Guide] Settle Done
2026/04/15 02:19:07 Exposure 120.0s image 94#
2026/04/15 02:23:23 Exposure 120.0s image 94# failed
2026/04/15 02:23:23 [Guide] Stop Guiding
2026/04/15 02:23:23 [Autorun|End] Pause Autorun
2026/04/15 02:23:23 Pause Plan New Plan
2026/04/15 02:23:24 Turn Off Cooling
2026/04/15 02:23:24 [Guide] Stop Looping
2026/04/15 02:23:24 Stop Tracking
2026/04/15 02:23:42 Mount GoTo Home POS
Log disabled at 2026/04/15 02:23:42

I have seen it happen a time or two while I've been monitoring the imaging plan, the camera will complete the exposure countdown, it'll get to a "preparing" state on the screen, then nothing will happen. It'll just hang for a bit, then eventually fail to download, and the whole plan session will end and park the mount. There's never any rhyme or reason, it'll just happen unpredictably, there doesn't seem to be any issues with any of the other equipment connected (EFW, EAF, CAA), with the guiding, or anything else. It'll just be taking exposures, downloading just fine, then randomly fail to download an exposure and end the session.

It's getting really frustrating and I would like some support from tech support here, I can't be the only person here having this problem. I think my next test will be to roll back the firmware to v2.3.3 and trying imaging all night with that.

SFOtaYhm

I'm experiencing the same issue. My set up is the ASIAIR Plus, the ASI2600MC Pro. This issue is a recent one, Ive changed the USB cables, added a direct power cord. Rolling back the firmware yielded the same results. This is unacceptable considering the limited imaging time we receive in this part of the country. A timely response or some indication that you care about your customers would be great.Its a 2026 issue for me, if you read the comments in the forum, you can see its been an issue for several iterations of cameras, therefore a historical issue. Please resolve.

Eric

FWIW I tried several things with my power source/supply and may have settled on a combination that limits the problem:
1) I use LiFePo4 batteries as a backup in my home observatory since we have occasional power outages in our area and I don't want power cutting out and possibly causing a problem with the setups. I had an EcoFlow River 2 and River 2 MAX as batteries, both with DC output (cigarette lighter style) that I was using to power my setups. I noticed in the ASIAir menu the power input when either of my rigs was powered via that cigarette lighter DC output was ₁₂.1v. I was having a problem with the River 2 MAX not simultaneously charging while discharging to the equipment, so I removed the River 2 MAX and power that rig from my mains power with a Pegasus 12v10a power supply while I troubleshot the River 2 MAX. I noticed in the ASIAir menu my power input with the Pegasus PS was ₁₂.8v and the one evening I had to image with that power supply, I had no issues.
2) I fixed the River 2 MAX and tried swapping in a different DC cigarette style plug, running directly to the 2600mm Air, the power still read ₁₂.1v and I did have a random disconnect with that. Then I tried plugging the Pegasus PS into the AC outlet on the River 2 MAX, the ASIAir read ₁₂.8v and I did not have any plan exposure failures.
3) I checked the DC out from my other EcoFlow River 2 and it also read ₁₂.1v and had an occasional exposure failure problem, plugging the Pegasus PS into the AC output on that EcoFlow also resulted in ₁₂.8v reading in the ASIAir app. I concluded that the EcoFlow batteries simply aren't putting out consistent power from the DC cigarette lighter style outputs.
4) I bought the equivalent battery from Bluetti (ELITE 30 v2), when using the same cigarette lighter style DC power cable as I was using before, the ASIAir app shows ₁₃.1v when powered from the Bluetti and the one night I had to image resulted in no exposure failures. Also, the image download speeds are a fair bit faster, downloading at 24-30mbps instead of 20-25mbps.

This may not solve everyone's issues, but it seems like for me the main problem was from insufficient power/power supply connection. I went through multiple configurations with the DC cigarette lighter style cables and 12v10a power supply along with the batteries to troubleshoot. So if you are having exposure failure issues, I'd start by looking at what the ASIAir app is reporting for the power input, if it's reporting ₁₂-12.1-12.2v then your power supply may be an issue.