Quote:
Originally Posted by Wryhder
I began using a fixed IP on my tablet because of the connection issues.
I figured that was one less IP address to worry about.
Since CC on my sister's phone is new, it's using the default connection settings, as is mine.
Something I just remembered: my CC has four options for connecting to Calibre. - Wireless connection without syncing
- wireless/sync
- content server
- cloud
My sister's has three. Just wireless, content server, cloud.
We're using the most recent version of CC.
I know this "varies with device" according to the additional information on Play Store. |
This is controlled by a CC setting in Settings / Connect to calibre. You added the "sync" option on your device but not your sisters. The difference in connections is time. When you use "Sync books" calibre must check the file date of every book on your device, something that can take a long time. In your case that process (in calibre) seems to be taking around 2 minutes.
Quote:
As for the frequency band, I'm using a low-end dongle. It probably doesn't support 5 GHz, as I have not seen an option to change bands on the router's webpage.
I successfully connected to Calibre today, but it took three hours to sync about 4400 books (It used to be maybe an hour or less and this dongle is faster than the last one. Same service provider), and it disconnected twice before that in the middle of receiving books from Calibre.
I'm thankful it's connecting at all.
Here's the most recent log: Attachment 153871
Thanks a lot for your help.
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A few of things of note:
- Networking has strange behavior. When CC connected at 2016-12-30 13:13:57, broadcasting did not find calibre. Instead CC found calibre using bonjour (mDNS). At 2016-12-30 13:34:23 both broadcast and bonjour returned the same IP address for calibre. At 2016-12-30 14:09:35, only broadcast worked. Bonjour did not reply. This level of difference shouldn't happen. If broadcast works once then it should work every time, except if the network is severely overloaded or is being poisoned by neighboring WiFi installations. If you have the tools then you might want to run a WiFi scan to see whether the WiFI channel you are using is the best one available.
- It took CC almost 2 minutes to scan for new books. You might want to turn that option off in CC's Settings / Connecting to calibre / Wireless device settings, especially if you don't ever manually add books.
- All formats (extensions) are enabled. You might want to turn off the ones you never use.
- Judging from the file paths and the processing times, there is a possibility that you are seeing some of the problems described in our FAQ: I have added a lot of books and now adding books takes forever. What do I do?. However, I am not convinced. Something else seems to be affecting performance.
- CC is taking from 1 to 4 seconds per book (and sometimes more) to update its database. This process should take around 1/2 second. There is a chance that using CC's "Clean book database" command will help (Settings / Other / Clean book database).
- Judging from the smaller books, CC requires 0.1 second to process a book file after receiving it (save it to memory and queue the database work). This is normal.
- Networking seems slow. For example, one book is 71,217,095 bytes long. It took CC 26 seconds to receive that book, or 2.7 MB/sec. The following book is 4,492,355 bytes long and it took CC 2.186 seconds to receive it, which is 2.1 MB/sec. CC doesn't do anything significant when receiving a book so that time must be in the device's network layer or in the network itself.
This matters because you seem to have a lot of books longer than a megabyte. Eyeball calculation is around 20%. A significant number of books are longer than 10 megabytes.
I am not sure what more I can do. From the log, CC is behaving normally.