Package: firmware-iwlwifi Version: 20161130-3 REPORT: Debian 8 (Jessie) 1) The Jessie wifi package is 'firmware-iwlwifi' version 0.43
2) Linux kernel = 3.16.0.4-amd64 #1 SMP Debian 3.16.51-2 (2017-12-03) x86_64 GNU/Linux 3) C library version = 2.19-18+deb8u10 When using Debian 8 (Jessie) fresh after GNOME install, wifi speeds are measured at 150Mbps download on N network using the Intel Centrino Ultimate-N 6300 wireless card (on a ThinkPad X220 with 3 antennas). After setting the '11n_disable=8' parameter (as exampled immediately below), speeds increased to 200Mbps download. $ sudo nano /etc/modprobe.d/iwlwifi.conf options iwlwifi 11n_disable=8 REPORT: Debian 9 (Stretch) 1) The Stretch wifi package is 'firmware-iwlwifi' version 20161130-3 2) Linux kernel = 4.9.0-4-amd64 #1 SMP Debian 4.9.65-3 (2017-12-03) x86_64 GNU/Linux 3) C library version = 2.24-11+deb9u1 When using Debian 9 (Stretch) fresh after GNOME install, wifi speeds are measured at around 50 Mbps download on N network using the Intel Centrino Ultimate-N 6300 wireless card (on a ThinkPad X220 with 3 antennas). After setting the '11n_disable=8' parameter (as exampled immediately below), speeds increased to around 100Mbps download. $ sudo nano /etc/modprobe.d/iwlwifi.conf options iwlwifi 11n_disable=8 The system used for testing was a Lenovo ThinkPad X220. Stretch and Jessie were both run on identical hardware connecting to the same access point produced by a router running LEDE. Debian Stretch wifi is significantly slower than Debian Jessie wifi. Hopefully something can be done to improve the wifi speed of Debian Stretch but also to make sure that the wifi speeds of Debian Buster can be improved before it is released as stable.
