Hi all I have problem with iwn wifi on my Lenovo x201.
In during connect to AP, I see the message: iwn0: fatal firmware error firmware error log: error type = "SYSASSERT" (0x00000005) program counter = 0x00022278 source line = 0x00000218 error data = 0x000002180000000D branch link = 0x0002225800022258 interrupt link = 0x0000153200000000 time = 2649090300 driver status: tx ring 0: qid=0 cur=3 queued=0 tx ring 1: qid=1 cur=0 queued=0 tx ring 2: qid=2 cur=0 queued=0 tx ring 3: qid=3 cur=0 queued=0 tx ring 4: qid=4 cur=37 queued=0 tx ring 5: qid=5 cur=0 queued=0 tx ring 6: qid=6 cur=0 queued=0 tx ring 7: qid=7 cur=0 queued=0 tx ring 8: qid=8 cur=0 queued=0 tx ring 9: qid=9 cur=0 queued=0 tx ring 10: qid=10 cur=0 queued=0 tx ring 11: qid=11 cur=0 queued=0 tx ring 12: qid=12 cur=0 queued=0 tx ring 13: qid=13 cur=0 queued=0 tx ring 14: qid=14 cur=0 queued=0 tx ring 15: qid=15 cur=0 queued=0 tx ring 16: qid=16 cur=0 queued=0 tx ring 17: qid=17 cur=0 queued=0 tx ring 18: qid=18 cur=0 queued=0 tx ring 19: qid=19 cur=0 queued=0 rx ring: cur=41 802.11 state 4 shupikov@balamut:~$ fw_update -i Installed: uvideo-firmware-1.2p1 iwn-firmware-5.11p1 dmesg below: OpenBSD 5.8-current (GENERIC.MP) #1754: Thu Dec 17 12:25:09 MST 2015 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 8357658624 (7970MB) avail mem = 8100233216 (7724MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.6 @ 0xe0010 (78 entries) bios0: vendor LENOVO version "6QET70WW (1.40 )" date 10/11/2012 bios0: LENOVO 3626AZ8 acpi0 at bios0: rev 2 acpi0: sleep states S0 S3 S4 S5 acpi0: tables DSDT FACP SSDT ECDT APIC MCFG HPET ASF! SLIC BOOT SSDT TCPA SSDT SSDT SSDT acpi0: wakeup devices LID_(S3) SLPB(S3) IGBE(S4) EXP1(S4) EXP2(S4) EXP3(S4) EXP4(S4) EXP5(S4) EHC1(S3) EHC2(S3) HDEF(S4) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpiec0 at acpi0 acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz, 2660.40 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,POPCNT,AES,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT cpu0: 256KB 64b/line 8-way L2 cache cpu0: smt 0, core 0, package 0 mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges cpu0: apic clock running at 132MHz cpu0: mwait min=64, max=64, C-substates=0.2.1.1, IBE cpu1 at mainbus0: apid 1 (application processor) cpu1: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz, 2660.00 MHz cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,POPCNT,AES,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT cpu1: 256KB 64b/line 8-way L2 cache cpu1: smt 1, core 0, package 0 cpu2 at mainbus0: apid 4 (application processor) cpu2: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz, 2660.00 MHz cpu2: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,POPCNT,AES,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT cpu2: 256KB 64b/line 8-way L2 cache cpu2: smt 0, core 2, package 0 cpu3 at mainbus0: apid 5 (application processor) cpu3: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz, 2660.00 MHz cpu3: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,POPCNT,AES,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT cpu3: 256KB 64b/line 8-way L2 cache cpu3: smt 1, core 2, package 0 ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 24 pins ioapic0: misconfigured as apic 2, remapped to apid 1 acpimcfg0 at acpi0 addr 0xe0000000, bus 0-255 acpihpet0 at acpi0: 14318179 Hz acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus -1 (PEG_) acpiprt2 at acpi0: bus 13 (EXP1) acpiprt3 at acpi0: bus -1 (EXP2) acpiprt4 at acpi0: bus -1 (EXP3) acpiprt5 at acpi0: bus 5 (EXP4) acpiprt6 at acpi0: bus 2 (EXP5) acpicpu0 at acpi0: C3(350@245 mwait.3@0x20), C2(500@205 mwait.3@0x10), C1(1000@3 mwait.1), PSS acpicpu1 at acpi0: C3(350@245 mwait.3@0x20), C2(500@205 mwait.3@0x10), C1(1000@3 mwait.1), PSS acpicpu2 at acpi0: C3(350@245 mwait.3@0x20), C2(500@205 mwait.3@0x10), C1(1000@3 mwait.1), PSS acpicpu3 at acpi0: C3(350@245 mwait.3@0x20), C2(500@205 mwait.3@0x10), C1(1000@3 mwait.1), PSS acpipwrres0 at acpi0: PUBS, resource for EHC1, EHC2 acpitz0 at acpi0: critical temperature is 100 degC acpibtn0 at acpi0: LID_ acpibtn1 at acpi0: SLPB acpibat0 at acpi0: BAT0 model "42T4835" serial 1371 type LION oem "SANYO" acpibat1 at acpi0: BAT1 not present acpiac0 at acpi0: AC unit online acpithinkpad0 at acpi0 acpidock0 at acpi0: GDCK not docked (0) cpu0: Enhanced SpeedStep 2660 MHz: speeds: 2400, 2399, 2266, 2133, 1999, 1866, 1733, 1599, 1466, 1333, 1199 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "Intel Core Host" rev 0x02 inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics" rev 0x02 drm0 at inteldrm0 intagp0 at inteldrm0 agp0 at intagp0: aperture at 0xd0000000, size 0x10000000 inteldrm0: msi inteldrm0: 1280x800 wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation) wsdisplay0: screen 1-5 added (std, vt100 emulation) "Intel 3400 MEI" rev 0x06 at pci0 dev 22 function 0 not configured em0 at pci0 dev 25 function 0 "Intel 82577LM" rev 0x06: msi, address f0:de:f1:17:d9:ee ehci0 at pci0 dev 26 function 0 "Intel 3400 USB" rev 0x06: apic 1 int 23 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 azalia0 at pci0 dev 27 function 0 "Intel 3400 HD Audio" rev 0x06: msi azalia0: codecs: Conexant/0x5069, Intel/0x2804, using Conexant/0x5069 audio0 at azalia0 ppb0 at pci0 dev 28 function 0 "Intel 3400 PCIE" rev 0x06: msi pci1 at ppb0 bus 13 ppb1 at pci0 dev 28 function 3 "Intel 3400 PCIE" rev 0x06: msi pci2 at ppb1 bus 5 ppb2 at pci0 dev 28 function 4 "Intel 3400 PCIE" rev 0x06: msi pci3 at ppb2 bus 2 iwn0 at pci3 dev 0 function 0 "Intel Centrino Advanced-N 6200" rev 0x35: msi, MIMO 2T2R, MoW, address 00:27:10:b9:90:50 ehci1 at pci0 dev 29 function 0 "Intel 3400 USB" rev 0x06: apic 1 int 19 usb1 at ehci1: USB revision 2.0 uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb3 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0xa6 pci4 at ppb3 bus 14 pcib0 at pci0 dev 31 function 0 "Intel QM57 LPC" rev 0x06 ahci0 at pci0 dev 31 function 2 "Intel 3400 AHCI" rev 0x06: msi, AHCI 1.3 ahci0: port 0: 3.0Gb/s scsibus1 at ahci0: 32 targets sd0 at scsibus1 targ 0 lun 0: <ATA, INTEL SSDSC2BA40, 5DV1> SCSI3 0/direct fixed naa.55cd2e404b658c17 sd0: 381554MB, 512 bytes/sector, 781422768 sectors, thin ichiic0 at pci0 dev 31 function 3 "Intel 3400 SMBus" rev 0x06: apic 1 int 23 iic0 at ichiic0 spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-8500 SO-DIMM spdmem1 at iic0 addr 0x51: 4GB DDR3 SDRAM PC3-8500 SO-DIMM itherm0 at pci0 dev 31 function 6 "Intel 3400 Thermal" rev 0x06 isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 irq 1 irq 12 pckbd0 at pckbc0 (kbd slot) wskbd0 at pckbd0: console keyboard, using wsdisplay0 pms0 at pckbc0 (aux slot) wsmouse0 at pms0 mux 0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 aps0 at isa0 port 0x1600/31 pci5 at mainbus0 bus 255 pchb1 at pci5 dev 0 function 0 "Intel QuickPath" rev 0x02 pchb2 at pci5 dev 0 function 1 "Intel QuickPath" rev 0x02 pchb3 at pci5 dev 2 function 0 "Intel QPI Link" rev 0x02 pchb4 at pci5 dev 2 function 1 "Intel QPI Physical" rev 0x02 pchb5 at pci5 dev 2 function 2 "Intel Reserved" rev 0x02 pchb6 at pci5 dev 2 function 3 "Intel Reserved" rev 0x02 uhub2 at uhub0 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2 uvideo0 at uhub2 port 6 configuration 1 interface 0 "Chicony Electronics Co., Ltd. Integrated Camera" rev 2.00/23.45 addr 3 uhub3 at uhub1 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on sd0a (23b7f8d00a8db49d.a) swap on sd0b dump on sd0b video0 at uvideo0 iwn0: fatal firmware error firmware error log: error type = "SYSASSERT" (0x00000005) program counter = 0x00022278 source line = 0x00000218 error data = 0x000002180000000D branch link = 0x0002225800022258 interrupt link = 0x0000153200000000 time = 2649090300 driver status: tx ring 0: qid=0 cur=3 queued=0 tx ring 1: qid=1 cur=0 queued=0 tx ring 2: qid=2 cur=0 queued=0 tx ring 3: qid=3 cur=0 queued=0 tx ring 4: qid=4 cur=37 queued=0 tx ring 5: qid=5 cur=0 queued=0 tx ring 6: qid=6 cur=0 queued=0 tx ring 7: qid=7 cur=0 queued=0 tx ring 8: qid=8 cur=0 queued=0 tx ring 9: qid=9 cur=0 queued=0 tx ring 10: qid=10 cur=0 queued=0 tx ring 11: qid=11 cur=0 queued=0 tx ring 12: qid=12 cur=0 queued=0 tx ring 13: qid=13 cur=0 queued=0 tx ring 14: qid=14 cur=0 queued=0 tx ring 15: qid=15 cur=0 queued=0 tx ring 16: qid=16 cur=0 queued=0 tx ring 17: qid=17 cur=0 queued=0 tx ring 18: qid=18 cur=0 queued=0 tx ring 19: qid=19 cur=0 queued=0 rx ring: cur=41 802.11 state 4 iwn0: fatal firmware error firmware error log: error type = "SYSASSERT" (0x00000005) program counter = 0x00022278 source line = 0x00000218 error data = 0x000002180000000D branch link = 0x0002225800022258 interrupt link = 0x0000153200000000 time = 2663505540 driver status: tx ring 0: qid=0 cur=3 queued=0 tx ring 1: qid=1 cur=0 queued=0 tx ring 2: qid=2 cur=0 queued=0 tx ring 3: qid=3 cur=0 queued=0 tx ring 4: qid=4 cur=52 queued=0 tx ring 5: qid=5 cur=0 queued=0 tx ring 6: qid=6 cur=0 queued=0 tx ring 7: qid=7 cur=0 queued=0 tx ring 8: qid=8 cur=0 queued=0 tx ring 9: qid=9 cur=0 queued=0 tx ring 10: qid=10 cur=0 queued=0 tx ring 11: qid=11 cur=0 queued=0 tx ring 12: qid=12 cur=0 queued=0 tx ring 13: qid=13 cur=0 queued=0 tx ring 14: qid=14 cur=0 queued=0 tx ring 15: qid=15 cur=0 queued=0 tx ring 16: qid=16 cur=0 queued=0 tx ring 17: qid=17 cur=0 queued=0 tx ring 18: qid=18 cur=0 queued=0 tx ring 19: qid=19 cur=0 queued=0 rx ring: cur=44 802.11 state 4 sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 005> SCSI2 0/direct fixed sd1: 327284MB, 512 bytes/sector, 670279473 sectors iwn0: fatal firmware error firmware error log: error type = "SYSASSERT" (0x00000005) program counter = 0x00022278 source line = 0x00000218 error data = 0x000002180000000D branch link = 0x0002225800022258 interrupt link = 0x0000153200000000 time = 2672975488 driver status: tx ring 0: qid=0 cur=3 queued=0 tx ring 1: qid=1 cur=0 queued=0 tx ring 2: qid=2 cur=0 queued=0 tx ring 3: qid=3 cur=0 queued=0 tx ring 4: qid=4 cur=37 queued=0 tx ring 5: qid=5 cur=0 queued=0 tx ring 6: qid=6 cur=0 queued=0 tx ring 7: qid=7 cur=0 queued=0 tx ring 8: qid=8 cur=0 queued=0 tx ring 9: qid=9 cur=0 queued=0 tx ring 10: qid=10 cur=0 queued=0 tx ring 11: qid=11 cur=0 queued=0 tx ring 12: qid=12 cur=0 queued=0 tx ring 13: qid=13 cur=0 queued=0 tx ring 14: qid=14 cur=0 queued=0 tx ring 15: qid=15 cur=0 queued=0 tx ring 16: qid=16 cur=0 queued=0 tx ring 17: qid=17 cur=0 queued=0 tx ring 18: qid=18 cur=0 queued=0 tx ring 19: qid=19 cur=0 queued=0 rx ring: cur=41 802.11 state 4 iwn0: RF switch: radio disabled iwn0: Radio transmitter is off -- Best wishes.