[mobamoba]

I use Calibre Companion to connect wirelessly via the Android app and, with recent updates, I'm now rarely able to connect. I have no idea whether the problem is with Calibre or with CC and I'm not entirely sure how to tell where the problem lies.

The problem manifests like this: I'll connect via Wireless Connection from CC to Calibre; it works fine; I disconnect; next time I try to reconnect, it doesn't work. Generally the only solution is to restart Calibre and even that only works some of the time. Here's what I get in the Debug Device Detection log:

calibre 2.54 [64bit] embedded-python: True is64bit: True
Windows-8-6.2.9200 Windows ('64bit', 'WindowsPE')
('Windows', '8', '6.2.9200')
Python 2.7.9
Windows: ('8', '6.2.9200', '', 'Multiprocessor Free')
Successfully initialized third party plugins: DeDRM && Kindle and Mobipocket DeDRM && Inept Epub DeDRM && KePub Metadata Reader && Import List && Reading List && Kobo Utilities && EpubSplit && KePub Output && KoboTouchExtended && Inept PDF DeDRM && KePub Metadata Writer
USB devices on system:
(USBDevice(vendor_id=None product_id=None bcd=None devid=usb\root_hub&vid8086&pid2934&rev0003 devinst=1),
USBDevice(vendor_id=0x408 product_id=0x3ba bcd=0x109 devid=usb\vid_0408&pid_03ba&rev_0109&mi_00 devinst=2),
USBDevice(vendor_id=None product_id=None bcd=None devid=usb\root_hub&vid8086&pid2939&rev0003 devinst=3),
USBDevice(vendor_id=None product_id=None bcd=None devid=usb\root_hub20&vid8086&pid293a&rev0003 devinst=4),
USBDevice(vendor_id=None product_id=None bcd=None devid=usb\root_hub20&vid8086&pid293c&rev0003 devinst=5),
USBDevice(vendor_id=None product_id=None bcd=None devid=usb\root_hub&vid8086&pid2936&rev0003 devinst=6),
USBDevice(vendor_id=None product_id=None bcd=None devid=usb\root_hub&vid8086&pid2935&rev0003 devinst=7),
USBDevice(vendor_id=0x408 product_id=0x3ba bcd=0x109 devid=usb\vid_0408&pid_03ba&rev_0109 devinst=8),
USBDevice(vendor_id=None product_id=None bcd=None devid=usb\root_hub&vid8086&pid2938&rev0003 devinst=9),
USBDevice(vendor_id=0x138a product_id=0x1 bcd=0x372 devid=usb\vid_138a&pid_0001&rev_0372 devinst=10),
USBDevice(vendor_id=None product_id=None bcd=None devid=usb\root_hub&vid8086&pid2937&rev0003 devinst=11))

No disabled plugins
Looking for devices of type: MTP_DEVICE
The Windows WPD service says there are no portable devices connected

Looking for devices of type: SMART_DEVICE_APP
All IP addresses {'{F67136C6-8B02-4F6A-962E-A7230C75BA2B}': [{'broadcast': '192.168.206.255', 'netmask': '255.255.255.0', 'addr': '192.168.206.1'}], '{1F6D51A5-D1DA-11E5-9699-806E6F6E6963}': [{'broadcast': '127.255.255.255', 'netmask': '255.0.0.0', 'addr': '127.0.0.1'}], '{3446AE24-84BF-4EE8-8FFE-D023EF75AD21}': [{'addr': '169.254.86.62'}], '{14E9656C-9578-4069-BB27-F35B8DF122C9}': [{'broadcast': '192.168.238.255', 'netmask': '255.255.255.0', 'addr': '192.168.238.1'}], '{0CD68D9F-D359-42C4-B5C8-00518DCC8456}': [{'broadcast': '192.168.1.255', 'netmask': '255.255.255.0', 'addr': '192.168.1.123'}]}
No device is connected

Looking for devices...
USBDevice(vendor_id=0x408 product_id=0x3ba bcd=0x109 devid=usb\vid_0408&pid_03ba&rev_0109&mi_00 devinst=2)
Detected possible device ANDROID

Devices possibly connected: Android driver,
Trying to open Android driver ... Storage number map:
{(7L, 0L): [(2L, 'C')]}
Iterating over all devices of composite device: usb\vid_0408&pid_03ba&rev_0109
Drive letters for: usb\vid_0408&pid_03ba&rev_0109&mi_00 : []
Drive letters for: usb\vid_0408&pid_03ba&rev_0109 : []
Storage number map:
{(7L, 0L): [(2L, 'C')]}
Iterating over all devices of composite device: usb\vid_0408&pid_03ba&rev_0109
Drive letters for: usb\vid_0408&pid_03ba&rev_0109&mi_00 : []
Drive letters for: usb\vid_0408&pid_03ba&rev_0109 : []
Drive letters for USBDevice(vendor_id=0x408 product_id=0x3ba bcd=0x109 devid=usb\vid_0408&pid_03ba&rev_0109&mi_00 devinst=2)
{u'drive_letters': [],
u'pnp_id_map': {},
u'readonly_drives': set([]),
u'sort_map': {}}
failed
Opening of the following devices failed
<calibre.devices.android.driver.ANDROID object at 0x0000000007592940>
Traceback (most recent call last):
File "site-packages\calibre\devices\__init__.py", line 154, in debug
File "site-packages\calibre\devices\usbms\device.py", line 854, in open
File "site-packages\calibre\devices\usbms\device.py", line 268, in open_windows
DeviceError: Unable to detect any disk drives for the device: Android phone. Try rebooting

Like I said, this has been happening recently, like over the past few months and happens with all of my Android devices.

Sorry if I'm posting in the wrong forum but I really can't figure out the source of the problem and, since I could at least post the device debug log from Calibre, I figured I'd start there. Calibre is running 64-bit on fully updated Win10 if that matters and my ebook library is on my internal storage on Android.

BTW it's only with Wireless Device connection; Content Server works fine.