Device going offline randomly (and appearing multiple times as offline) in Eclipse - fixes?

Question

This problem has been bugging me for ages and I can\'t seem to fix it or fully localize the source of the problem (although at times I can force it by allowing the phone to Stan

Answer 1

Changing the usb port worked out for me, also check if you are using usb hubs for connecting the devices. front usb port and back usb ports also make a difference. preferably use back usb port.

Answer 2

I have been in this situation a number of times and many of the above solutions usually work. Today none of them worked. Restarted ADB server, toggled USB debugging off and on, tried a different cable and port, re-installed driver, restarted computer. Experienced the same problem on other computers. No luck...

Solution for me: Restarted the android device.

Answer 3

Try these two things, now everything is working for me:

1. Install the device's manufacturer USB Drivers.

2. Replace the data cable you are using.

Answer 4

In my case the issue with offline mode was the phone being plugged in a USB 3.0 port/USB hub. As soon as I moved it to a USB 2.0 port it worked with no issues.

Answer 5

2016 and this problem is still happenning , using Lenovo device android 4.4.2. The majority of proposed solution work 'sometimes'.

Still there is no explanation for this.

What worked for me was installing the Wifi ADB (app) and it even liberated me from usb cable limitations.BTW the device does not appear in android device monitor but appears upon running app Shift+f10.

Answer 6

Some of the above suggestions would help sometimes but not consistently. Like many, I've suspected the USB cables but in the end I've decided that it was the USB jack on my Android device simply wearing out from so much use. I guess they're only meant to be plugged in once or twice a day to charge, and not 10 times a day 5 days a week doing development. In this case a new cable may help but there may be no good solution short of a new device.