Ok, a follow up:
An important thing is that my Wireless adapter is: " Network controller: Intel
Corporation Wireless 7260 (rev 83)"
So, my first comment (#13) comment had a problem, as I had tried so many
things that I one solution step on the other. The unnecesary modprobe
lines were product of a line that I had added to
/etc/pm/config.d/modules
SUSPEND_MODULES="$SUSPEND_MODULES iwldvm iwlwifi"
Now, I commented that line (#.... ) and I added in my
/etc/modprobe.d/iwlwifi.conf:
options iwlwifi 11n_disable=1
Lastly, the script in /etc/pm/sleep.d/ (in my case it's named:
/etc/pm/sleep.d/nm-prob ) now looks like this:
#!/bin/sh
case "${1}" in
resume|thaw)
nmcli nm sleep false
#modprobe -rv iwldvm iwlwifi
#modprobe -v iwlwifi
#modprobe -v iwldvm
killall wpa_supplicant
dhclient -r wlan0
dhclient wlan0
nmcli nm sleep false
#restart network-manager
;;
esac
After TWO days I can confirm that these changes solved both the problem
after suspend as the unstable connection problem.
Hope it helps
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https://bugs.launchpad.net/bugs/1311257
Title:
Wifi cannot connect or unstable after suspend 14.04
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