Public bug reported:
Bug introduced somewhere between Ubuntu 14.04.3 and 16.04.1
If my Thinkpad T420s awakes from standby, very often the last connected
WiFi network is reconnected immediately, but the connection is
dysfunctional.
ifconfig shows a valid connection with an IPv4 address assigned for the
wlp3s0 interface.
But there is no traffic, no success on DNS queries on the connection.
If I reconnect by clicking the connection in the nm-applet menu, all is
fine again.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1618839
Title:
Regression: WiFi connection reconnects, but dead, after waking from
standby
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