*** This bug is a duplicate of bug 1561974 ***
https://bugs.launchpad.net/bugs/1561974
The same problem exists on Thinkpad W530, Ubutnu 16.04, Kernel
4.8.0-46-generic, NVidia proprietary drivers 381.09.
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Packages, which
The problem reappears on Thinkpad W530, Ubutnu 16.04, Kernel
4.8.0-46-generic, NVidia proprietary drivers 381.09.
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https://bugs.launchpad.net/bugs/1561974
Title:
[Lenovo T4
After upgrading the BIOS firmware on Lenovo W530 to version 2.66
(newest):
# Testing Ubuntu Kernel-4.4.0
After system start:
- rarely works
- often re-connecting to WiFi suffices
- less oftne WLAN PM must be disabled
After wake-up:
- rarely works
- often re-connecting to WiFi suffices
- less
Sorry for the delay but I have finally got time to perform more tests.
# Testing with other devices
I've observed, that switching to other WiFi hot-spot makes a difference: the
problem is only observed, when "Lenovo W530" (Ubuntu) connects to "Speedport W
724v typ A". When testing with another h
Public bug reported:
On Lenovo W530, after upgrade from 14.04 to 16.04:
Although wifi card is still connected to the wifi-router (network manager
states so), no user traffic is passing through after a few seconds from
authentication.
Workaround: 'iwconfig wlan0 power off' executed after the con
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