SharpCap Forums

I have two powered USB3 hubs. One is a piece of crap so I bought a Startech ST4300U3C3 powered hub. Works fine with my 5 external USB3 HDs. But when I connected my Altair Hypercam IMX174, SC reported there was a problem as did AltairCap and PHD2. However, if I disconnected the USB3 hub's power, all 3 apps were happy. To make it really weird, I could connect a battery or AC power after a successful connection without SC complaining.

My ASUS 503 laptop has the latest BIOS version. Has anyone run into a similar problem?

I don't think this is an SC problem but am hoping this community can help me.

stubblejumper

Have a look at viewtopic.php?f=18&t=349 both posts.

I have two powered USB3 hubs. One is a piece of crap so

Implies the other one works? If so, why not buy another of them (assuming they can still be bought)?

Dave

The one that never worked was made by Insignia, not the Startech.

I switched to my ASI1600MM Pro and it worked flawlessly with the Startech ST4300U3C3. That narrows the problem down to something specific to the Altair Hypercam IMX174. I believe the problem is the Altair driver. I upgraded my Altair software to the latest version with no improvement. I shall raise the issue in the Altair forum.

Don

Don

Were you able to use the known working ZWO cable with the IMX174?

When raising this with the vendor I suggest you reproduce the problem with AltairCapture - thay way everything is from a single vendor.

Dave

Thx Dave.

I used the ZWO cable on the IMX174 and the IMX174 cable to the laptop. Both cables have worked without a problem for many months. I stopped using the Startech cable because it had not been proven to work.

Since AltairCapture didn't work with the IMX174 when passing through the hub when powered, I believe the problem is in their software driver. Something changes when the hub has power supplied to it. I can't imagine what.

I' should hear from Altair on Monday. Nick is pretty good about responding.

Don