I've also found: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=687488 (debian-installer: LIFEBOOK P7120: association fails with WPA-PSK but works after installation) The bug reporter there has the same wireless card as me (8086:4223 = Intel Corporation PRO/Wireless 2915ABG) so perhaps this is the same bug.
...and I've also found: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=757861 (debian-installer: wifi / wlan can not connect to wpa secured networks) I think that the original bug reporter there has a different problem to mine, but afterwards, Laurent Cooper replied with message #20 (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=757861#20) and Laurent has exactly the same symptoms as me (same firmware description too i.e. ipw2200) so perhaps Laurent has exactly the same bug too. I've tried a stretch/testing netinst installer (using http://cdimage.debian.org/cdimage/daily-builds/daily/20160331-1/i386/iso-cd/debian-testing-i386-netinst.iso) and that gives exactly the same problem. I've attached as much info as I think could be useful. If you want any other logs, please let me know. With kind regards, Jaime
syslog
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dmesg.grep.-i.firm
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lspci
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