I also removed existing /lib/firmware/iwlwifi* files (e.g. In order to correct the situation I downloaded the iwlwifi-5000-ucode-5.4.A.11.tar.gz which contains a file iwlwifi-5000-1.ucode. Why does 13.04 use iwlwifi firmware=8.83.5.1 and not firmware=5.4.1.16 as suggested at ? sudo lshw -class networkĬonfiguration: broadcast=yes driver=iwlwifi driverversion=3.8.0-21-generic firmware=8.83.5.1 build 33692 ip=192.168.0.109 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgnīut according to the Intel® Wireless WiFi 5100AGN driver should be iwlwifi-5000-ucode-5.4.A.11.tar.gz (the firmware=8.83.5.1 above refers to an other wifi device namely to Intel® Wireless WiFi 5350AGN). After some digging it looks like the iwlwifi firmware version for my PC Intel WiFi Link 5100 adapter is wrong. After upgrading to 13.04 the wifi usually fails to find a network and after a while the network manager crashes.
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