bwn0: RX decryption attempted (old 0 keyidx 0x2)

Anton Shterenlikht mexas at
Tue May 14 20:09:03 UTC 2013

I have this wireless chip:

siba_bwn0 at pci0:48:0:0:  class=0x028000 card=0x1371103c chip=0x431214e4 rev=0x02
    vendor     = 'Broadcom Corporation'
    device     = 'BCM4311 802.11a/b/g'
    class      = network

I use bwn(4) for it:

siba_bwn0: <Broadcom BCM4312 802.11a/b/g Wireless> mem 0xc8100000-0xc8103fff irq
 18 at device 0.0 on pci48
siba_bwn0: unsupported coreid (USB 1.1 Host)
bwn0 on siba_bwn0
bwn0: WLAN (chipid 0x4311 rev 13) PHY (analog 4 type 2 rev 9) RADIO (manuf 0x17f
 ver 0x2050 rev 2)
bwn0: DMA (64 bits)
bwn0: Using 1 MSI messages
bwn0: firmware version (rev 410 patch 2160 date 0x751a time 0x7c0a)

I then use wpa_supplicant(8) to connect
to the net.

All this seems to work, often I see on the

bwn0: RX decryption attempted (old 0 keyidx 0x2)

repeated tens or maybe hundreds of times.

What does this tell me? Could this be a symptom
of other problems?



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