[Android] Companion won't connect - Demo will

sundance · 11-14-2017, 01:06 PM

I've had calibre companion for a about 3 years and it sometimes take 20 or 30 tries to get it to connect. I put on calibre demo and it connects instantly every time. Both are using the same parameters. Any suggestions?

chaley · 11-14-2017, 02:47 PM

Given that the two versions use *exactly the same code* to connect, something must be different in the environment. It could be the device, the setup, some firewall on the android device, the size of the library, or something related to where the books are stored. Guessing without any further information, I suspect that it is the size of the library.

If you send me a CC debug log from both the demo and full version then I might be able to tell you what that difference is.

sundance · 11-14-2017, 05:58 PM

I figured that the code would be pretty much the same. Both apps are running on my Samsung Galaxy Tab A. The library of course is on my computer which both connect to. Same hardware, software, and environment. I could get a debug log if you could point me to directions. Thanks for helping.

sundance · 11-14-2017, 06:00 PM

I see.

theducks · 11-14-2017, 08:28 PM

CC runs fine on my TAB A

Connection issues almost always fall into; The computer is currently sleeping or Calibre was closed.

Is it possible that your Tab connects to different WiFi networks (Guest instead of Main)?

sundance · 11-16-2017, 09:00 AM

No. Same network and I am looking at Calibre on the screen so it is not asleep.

chaley · 11-16-2017, 09:10 AM

Quote:

Originally Posted by chaley

Given that the two versions use *exactly the same code* to connect, something must be different in the environment. [...] the size of the library, or something related to where the books are stored.

Quote:

Originally Posted by sundance

The library of course is on my computer which both connect to. Same hardware, software, and environment.

When I said "size of the library" I meant the library on the device. The demo version's library will be very small (for obvious reasons), while the full version's library might be large. This coupled with performance differences in storing books in main memory vs SD cards could explain the problem. That is why I pointed at the FAQ [Android] I have added a lot of books and now adding books takes forever. What do I do?.

If all of the following are true:

the library is on an SD card or you changed the library location in main memory
the library is reasonably large (> 1000 books or so)
you have not changed the storage template (the FAQ above)
you have "scan for new books" enabled (CC Settings / Connecting to calibre / Wireless device connection / Scan on connect).
you have all the formats enabled available in CC's Settings / Formats & Folders

then there is a good chance that the scan taking so long that the network connection is timing out.

11-14-2017, 01:06 PM	#1
sundance Junior Member Posts: 4 Karma: 10 Join Date: Nov 2017 Device: Samsung Galaxy Tab A	[Android] Companion won't connect - Demo will I've had calibre companion for a about 3 years and it sometimes take 20 or 30 tries to get it to connect. I put on calibre demo and it connects instantly every time. Both are using the same parameters. Any suggestions?

11-14-2017, 05:58 PM	#3
sundance Junior Member Posts: 4 Karma: 10 Join Date: Nov 2017 Device: Samsung Galaxy Tab A	companion vs. demo I figured that the code would be pretty much the same. Both apps are running on my Samsung Galaxy Tab A. The library of course is on my computer which both connect to. Same hardware, software, and environment. I could get a debug log if you could point me to directions. Thanks for helping.

11-14-2017, 06:00 PM	#4
sundance Junior Member Posts: 4 Karma: 10 Join Date: Nov 2017 Device: Samsung Galaxy Tab A	Never mind about debug log instructions: I see.

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11-14-2017, 02:47 PM	#2
chaley Grand Sorcerer Posts: 11,740 Karma: 6997045 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	Given that the two versions use exactly the same code to connect, something must be different in the environment. It could be the device, the setup, some firewall on the android device, the size of the library, or something related to where the books are stored. Guessing without any further information, I suspect that it is the size of the library. If you send me a CC debug log from both the demo and full version then I might be able to tell you what that difference is.

11-14-2017, 08:28 PM	#5
theducks Well trained by Cats Posts: 29,799 Karma: 54830978 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	CC runs fine on my TAB A Connection issues almost always fall into; The computer is currently sleeping or Calibre was closed. Is it possible that your Tab connects to different WiFi networks (Guest instead of Main)?

11-16-2017, 09:00 AM	#6
sundance Junior Member Posts: 4 Karma: 10 Join Date: Nov 2017 Device: Samsung Galaxy Tab A	No. Same network and I am looking at Calibre on the screen so it is not asleep.

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