Jessie regularly loses wifi connection[solved]

[sesselastronaut]

thanks for the help! Seems like the command provide by head_on_a_stick does the trick:

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iw dev wlan0 set power_save off

at least I got a stable connection the last 2 days on both wireless networks I've been using.

I was wondering how to make this settings permanent?

[Head_on_a_Stick]

I was wondering how to make this settings permanent?

Does it not persist across reboots?

You could try v&n's suggestions given here:
http://forums.debian.net/viewtopic.php?p=573842#p573842

Or you could try my suggestion given here:
http://forums.debian.net/viewtopic.php?p=572680#p572680

[sesselastronaut]

thanks! Creating a /etc/modprobe.d/wireless_powersave.conf with

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options iwlwifi power_save=0

seem to have no effect - same drop-out behaviour.

I was trying v&n's suggestion however there's no "pm" directory in my /etc/, should I just create it?

[v&n]

The power_save parameter is already set to 'N' (or '0') as reported by the wireless-script earlier -

module parameters ~~~~~~~~~~~~~~~~~~

....
iwlwifi (13): 11n_disable=8 | amsdu_size_8K=0 ....| power_save=N | swcrypto=0 | uapsd_disable=Y | wd_disable=1

..which is as expected because 'N' is the default value for that parameter as indicated by 'modinfo'. So I guess we must force it externally.

I was trying v&n's suggestion however there's no "pm" directory in my /etc/, should I just create it?

Do you have 'pm-utils' package installed? Apparently not. Check with -

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dpkg -l | grep 'pm-utils'

If it does not return any line starting with "ii pm-utils....", then it is not installed. Regardless of whether it is installed or not, please try the 'power_scheme=1' parameter for 'iwlmvm' driver first (also suggested in my previous post).

Creating the directory/file without existence of 'pm-utils' will make no difference, because it is pm-utils that interprets and executes those scripts.

Another crude workaround, if the 'power_scheme=1' parameter doesn't help and you don't want to install pm-utils, is to simply add the command suggested by Head_on_a_Stick to you /etc/rc.local file -

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sudo sed -i '/^exit 0/ i iw dev wlan0 set power_save off' /etc/rc.local

The above command will insert the line "iw dev wlan0 set power_save off" just above the last line (which should ALWAYS be "exit 0") in the /etc/rc.local file. This will simply run the command at every boot automatically.

[sesselastronaut]

ok seems like

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sudo tee /etc/modprobe.d/iwlmvm.conf <<< "options iwlmvm power_scheme=1"

makes these settings permanent across reboots. Thanks once more!

[v&n]

ok seems like

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sudo tee /etc/modprobe.d/iwlmvm.conf <<< "options iwlmvm power_scheme=1"

makes these settings permanent across reboots. Thanks once more!

Glad to hear that. Thank you for the confirmation, I'm sure it can help many more users.

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