WPA authentication problem

[Robert Deliën]

A small breakthrough: If I out-comment rsn_pairwise=CCMP from my hostapd.conf, WPA authentication works. Not as intended, but it's an improvement nevertheless.

I'm sure somebody here can tell me what I'm doing wrong.

Below my hostapd.conf:
logger_syslog=-1
logger_syslog_level=0
logger_stdout=0
logger_stdout_level=5
interface=wlan0
driver=nl80211
ssid=testnet
hw_mode=g
channel=11
beacon_int=100
dtim_period=2
max_num_sta=255
rts_threshold=2347
fragm_threshold=2346
preamble=1
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=3
wpa_passphrase=passphrase
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP TKIP
# rsn_pairwise=CCMP