Calibre Companion Keeps Disconnecting

TGPB · 02-04-2014, 01:21 AM

Pipo M9pro Tablet
Quad Core
32GB
Android 4.2.2

Calibre Companion 3.2.6

Calibre 1.21

Windows 7 Professional 32bit
3GB
Intel Core 2 Duo 2.0 GHz

Just downloaded CC this evening. Had to use the dedicated port to get it to see the tablet. Even then I have to try 2-4 tries before it connects. It seems to work better if I move just one book at a time to the tablet. Even then is disconnects in the middle of a download and requires a reboot to get the program to work again on the tablet. This is the only app I have any troubles with.

I have deleted all anti-virus programs except Microsoft Security Essentials. The firewall is allowing Calibre through.

Any ideas why it keeps disconnecting?

TGPB

chaley · 02-04-2014, 05:04 AM

Usually this is caused by a wifi signal that is marginal or by neighboring wifi access points on the same channel. CC sends a book as a continuous stream of information, and if the network gets confused in the middle of the book then sometimes the device disconnects.

The fact that it takes multiple attempts to connect supports this hypothesis. Connection uses a network packet that devices can choose to throw away or not do error checking (UDP broadcast). If these packets are lost then connection won't succeed, which is what I think is happening in your case.

Possible fixes:
- Be sure that you have a strong wifi signal.
- Change the wifi channel of your access point. Do a survey first if your software supports it.
- Both of the above.

There is very little we can do to improve this problem, which may leave you deciding that CC isn't for you. If that is the case, please feel free to ask for a refund by sending email to multipie from inside CC.

02-04-2014, 01:21 AM	#1
TGPB Junior Member Posts: 7 Karma: 10 Join Date: Feb 2014 Location: Idaho Device: Win 10 Laptop S7 Phone	Calibre Companion Keeps Disconnecting Pipo M9pro Tablet Quad Core 32GB Android 4.2.2 Calibre Companion 3.2.6 Calibre 1.21 Windows 7 Professional 32bit 3GB Intel Core 2 Duo 2.0 GHz Just downloaded CC this evening. Had to use the dedicated port to get it to see the tablet. Even then I have to try 2-4 tries before it connects. It seems to work better if I move just one book at a time to the tablet. Even then is disconnects in the middle of a download and requires a reboot to get the program to work again on the tablet. This is the only app I have any troubles with. I have deleted all anti-virus programs except Microsoft Security Essentials. The firewall is allowing Calibre through. Any ideas why it keeps disconnecting? TGPB

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02-04-2014, 05:04 AM	#2
chaley Grand Sorcerer Posts: 12,376 Karma: 8012652 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	Usually this is caused by a wifi signal that is marginal or by neighboring wifi access points on the same channel. CC sends a book as a continuous stream of information, and if the network gets confused in the middle of the book then sometimes the device disconnects. The fact that it takes multiple attempts to connect supports this hypothesis. Connection uses a network packet that devices can choose to throw away or not do error checking (UDP broadcast). If these packets are lost then connection won't succeed, which is what I think is happening in your case. Possible fixes: - Be sure that you have a strong wifi signal. - Change the wifi channel of your access point. Do a survey first if your software supports it. - Both of the above. There is very little we can do to improve this problem, which may leave you deciding that CC isn't for you. If that is the case, please feel free to ask for a refund by sending email to multipie from inside CC.

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