Thread: Aura H2O Kobo won't connect to a PC anymore
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Old 08-04-2017, 12:26 AM   #15
davidfor
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Posts: 24,905
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Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by icallaci View Post
I don't think my problem is due to a corrupt database, because when the Kobo actually does connect and I am able to use the Kobo Utilities to check the database, it always reports OK. Windows 7 is most consistently able to connect and keep the connection (only has a problem maybe 25% of the time), Windows 8.1 and 10 are terrible, sometimes as much as 75% of the time. Next chance I get to fight with...sorry, to connect one of my Kobos, I'll try to capture the actual error behind "Error communicating with device."
I didn't comment on the reason for your problem as I had no idea, but, no it isn't likely to be a corrupt database. I have seen reports like it and it always feels the USB connection is being over stressed and failing. If that is write, it could be the hardware in either the PC or device, or the drivers in either place. I've never come up with a way to fix it. But, I would like to see the error to see if there is a common place in communications with the device that fails.

The main problem I see with the USB connection is combination of bad design, a little clumsiness and a well used USB socket. On my laptop, the USB sockets are on the sides towards the front. There are two on the left and one on the right. I frequently hit anything plugged in with my hand while using the laptop. This can be enough to disconnect the device for a few moments and then connect again. When that happens, Windows will usually report an "unknown device" and calibre will report an error. And a lot of the time the port stops working until I reboot. Sometimes just restarting the device will work, but mostly I need to restart everything.
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