Intel Centrino Wireless-N 1000 can't connect to AP

Today ,I upgrade my freebsd from 10-beta4 to current.
Now, my freebsd can't connect to wireless AP. Wireless LAN strike.

iwn0 in /var/log/message:
Dec  7 08:02:00 x201i kernel: iwn0: <Intel Centrino Wireless-N 1000> mem
0xf2400000-0xf2401fff irq 16 at device 0.0 on pci2

Dec  7 08:02:00 x201i kernel: iwn0: attempting to allocate 1 MSI vectors (1
supported)
Dec  7 08:02:00 x201i kernel: msi: routing MSI IRQ 266 to local APIC 0
vector 62
Dec  7 08:02:00 x201i kernel: iwn0: using IRQ 266 for MSI
Dec  7 08:02:00 x201i kernel: iwn0: MIMO 1T2R, BGS, address
8c:a9:82:5a:41:58
Dec  7 08:02:00 x201i kernel: iwn0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
Dec  7 08:02:00 x201i kernel: iwn0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
Dec  7 08:02:00 x201i kernel: iwn0: 1T2R
Dec  7 08:02:00 x201i kernel: iwn0: 11ng MCS 20MHz
Dec  7 08:02:00 x201i kernel: iwn0: MCS 0-7: 6.5Mbps - 65Mbps
Dec  7 08:02:00 x201i kernel: iwn0: 11ng MCS 20MHz SGI
Dec  7 08:02:00 x201i kernel: iwn0: MCS 0-7: 7Mbps - 72Mbps
Dec  7 08:02:00 x201i kernel: iwn0: 11ng MCS 40MHz:
Dec  7 08:02:00 x201i kernel: iwn0: MCS 0-7: 13.5Mbps - 135Mbps
Dec  7 08:02:00 x201i kernel: iwn0: 11ng MCS 40MHz SGI:
Dec  7 08:02:00 x201i kernel: iwn0: MCS 0-7: 15Mbps - 150Mbps
......
Dec  7 08:02:00 x201i kernel: wlan0: Ethernet address: f0:de:f1:52:cf:16
Dec  7 08:02:00 x201i kernel: iwn0: iwn_intr: fatal firmware error
Dec  7 08:02:00 x201i kernel: firmware error log:
Dec  7 08:02:00 x201i kernel: error type      = "SYSASSERT" (0x00000005)
Dec  7 08:02:00 x201i kernel: program counter = 0x00018DBC
Dec  7 08:02:00 x201i kernel: source line     = 0x00000032
Dec  7 08:02:00 x201i kernel: error data      = 0x0000000100000000
Dec  7 08:02:00 x201i kernel: branch link     = 0x00018D6E00018D6E
Dec  7 08:02:00 x201i kernel: interrupt link  = 0x0000082600000000
Dec  7 08:02:00 x201i kernel: time            = 1538064582
Dec  7 08:02:00 x201i kernel: driver status:
Dec  7 08:02:00 x201i kernel: tx ring  0: qid=0  cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring  1: qid=1  cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring  2: qid=2  cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring  3: qid=3  cur=2   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring  4: qid=4  cur=57  queued=0--
Dec  7 08:02:00 x201i kernel: tx ring  5: qid=5  cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring  6: qid=6  cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring  7: qid=7  cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring  8: qid=8  cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring  9: qid=9  cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring 10: qid=10 cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring 11: qid=11 cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring 12: qid=12 cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring 13: qid=13 cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring 14: qid=14 cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring 15: qid=15 cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring 16: qid=16 cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring 17: qid=17 cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring 18: qid=18 cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: tx ring 19: qid=19 cur=0   queued=0--
Dec  7 08:02:00 x201i kernel: rx ring: cur=29
......
Dec  7 08:02:01 x201i wpa_supplicant[667]: ioctl[SIOCS80211, op=103, val=0,
arg_len=128]: Device not configured
Dec  7 08:02:01 x201i wpa_supplicant[667]: wlan0: Failed to initiate AP scan

I do not know where the problem is?
If necessary, I can tie debugging.