Greeting, finally I've catch something. I not sure is it the same error or not, but it seems right to share anyway.
It was get from snapshot which was installed about 3 days ago. Apr 21 10:59:40 matebook /bsd: iwx0: dumping device error log Apr 21 10:59:40 matebook /bsd: iwx0: Start Error Log Dump: Apr 21 10:59:40 matebook /bsd: iwx0: Status: 0x39, count: 6 Apr 21 10:59:40 matebook /bsd: iwx0: 0x00000071 | NMI_INTERRUPT_UMAC_FATAL Apr 21 10:59:40 matebook /bsd: iwx0: 00A0A200 | trm_hw_status0 Apr 21 10:59:40 matebook /bsd: iwx0: 00000000 | trm_hw_status1 Apr 21 10:59:40 matebook /bsd: iwx0: 004C938E | branchlink2 Apr 21 10:59:40 matebook /bsd: iwx0: 004BF29A | interruptlink1 Apr 21 10:59:40 matebook /bsd: iwx0: 004BF29A | interruptlink2 Apr 21 10:59:40 matebook /bsd: iwx0: 00014FF8 | data1 Apr 21 10:59:40 matebook /bsd: iwx0: 00001000 | data2 Apr 21 10:59:40 matebook /bsd: iwx0: 00000000 | data3 Apr 21 10:59:40 matebook /bsd: iwx0: DF00DCAF | beacon time Apr 21 10:59:40 matebook /bsd: iwx0: 7AFF7362 | tsf low Apr 21 10:59:40 matebook /bsd: iwx0: 00000345 | tsf hi Apr 21 10:59:40 matebook /bsd: iwx0: 00000000 | time gp1 Apr 21 10:59:40 matebook /bsd: iwx0: FCE9AF83 | time gp2 Apr 21 10:59:40 matebook /bsd: iwx0: 00000001 | uCode revision type Apr 21 10:59:40 matebook /bsd: iwx0: 0000004D | uCode version major Apr 21 10:59:40 matebook /bsd: iwx0: 2DF8986F | uCode version minor Apr 21 10:59:40 matebook /bsd: iwx0: 00000351 | hw version Apr 21 10:59:40 matebook /bsd: iwx0: 18889004 | board version Apr 21 10:59:40 matebook /bsd: iwx0: 80D9F400 | hcmd Apr 21 10:59:40 matebook /bsd: iwx0: 20028000 | isr0 Apr 21 10:59:40 matebook /bsd: iwx0: 60000000 | isr1 Apr 21 10:59:40 matebook /bsd: iwx0: 08F0000A | isr2 Apr 21 10:59:40 matebook /bsd: iwx0: 00C3009C | isr3 Apr 21 10:59:40 matebook /bsd: iwx0: 00000000 | isr4 Apr 21 10:59:40 matebook /bsd: iwx0: 0287001C | last cmd Id Apr 21 10:59:40 matebook /bsd: iwx0: 00014FF8 | wait_event Apr 21 10:59:40 matebook /bsd: iwx0: 00004288 | l2p_control Apr 21 10:59:40 matebook /bsd: iwx0: 00018034 | l2p_duration Apr 21 10:59:40 matebook /bsd: iwx0: 00000000 | l2p_mhvalid Apr 21 10:59:40 matebook /bsd: iwx0: 000000E7 | l2p_addr_match Apr 21 10:59:40 matebook /bsd: iwx0: 00000009 | lmpm_pmg_sel Apr 21 10:59:40 matebook /bsd: iwx0: 00000000 | timestamp Apr 21 10:59:40 matebook /bsd: iwx0: 00004064 | flow_handler Apr 21 10:59:40 matebook /bsd: iwx0: Start UMAC Error Log Dump: Apr 21 10:59:40 matebook /bsd: iwx0: Status: 0x39, count: 7 Apr 21 10:59:40 matebook /bsd: iwx0: 0x20103522 | ADVANCED_SYSASSERT Apr 21 10:59:40 matebook /bsd: iwx0: 0x00000000 | umac branchlink1 Apr 21 10:59:40 matebook /bsd: iwx0: 0x804561D2 | umac branchlink2 Apr 21 10:59:40 matebook /bsd: iwx0: 0x0107DD08 | umac interruptlink1 Apr 21 10:59:40 matebook /bsd: iwx0: 0x00000000 | umac interruptlink2 Apr 21 10:59:40 matebook /bsd: iwx0: 0x00000000 | umac data1 Apr 21 10:59:40 matebook /bsd: iwx0: 0x00000003 | umac data2 Apr 21 10:59:40 matebook /bsd: iwx0: 0xDEADBEEF | umac data3 Apr 21 10:59:40 matebook /bsd: iwx0: 0x0000004D | umac major Apr 21 10:59:40 matebook /bsd: iwx0: 0x2DF8986F | umac minor Apr 21 10:59:40 matebook /bsd: iwx0: 0xFCE9AF7E | frame pointer Apr 21 10:59:40 matebook /bsd: iwx0: 0xC0886BC0 | stack pointer Apr 21 10:59:40 matebook /bsd: iwx0: 0x008B0517 | last host cmd Apr 21 10:59:40 matebook /bsd: iwx0: 0x00000000 | isr status reg Apr 21 10:59:40 matebook /bsd: driver status: Apr 21 10:59:40 matebook /bsd: tx ring 0: qid=0 cur=140 cur_hw=140 queued=1 Apr 21 10:59:40 matebook /bsd: tx ring 1: qid=1 cur=20 cur_hw=20 queued=0 Apr 21 10:59:40 matebook /bsd: tx ring 2: qid=2 cur=136 cur_hw=136 queued=0 Apr 21 10:59:40 matebook /bsd: tx ring 3: qid=3 cur=0 cur_hw=0 queued=0 Apr 21 10:59:40 matebook /bsd: tx ring 4: qid=4 cur=0 cur_hw=0 queued=0 Apr 21 10:59:40 matebook /bsd: tx ring 5: qid=5 cur=0 cur_hw=0 queued=0 Apr 21 10:59:40 matebook /bsd: tx ring 6: qid=6 cur=0 cur_hw=0 queued=0 Apr 21 10:59:40 matebook /bsd: tx ring 7: qid=7 cur=0 cur_hw=0 queued=0 Apr 21 10:59:40 matebook /bsd: tx ring 8: qid=8 cur=0 cur_hw=0 queued=0 Apr 21 10:59:40 matebook /bsd: tx ring 9: qid=9 cur=0 cur_hw=0 queued=0 Apr 21 10:59:40 matebook /bsd: rx ring: cur=72 Apr 21 10:59:40 matebook /bsd: 802.11 state RUN Apr 21 10:59:40 matebook /bsd: iwx0: fatal firmware error Apr 21 10:59:41 matebook /bsd: iwx0: could not enable Tx queue 3 (error 35) Apr 21 10:59:41 matebook /bsd: iwx0: RUN -> INIT Apr 21 10:59:41 matebook /bsd: iwx0: begin active scan Apr 21 10:59:41 matebook /bsd: iwx0: INIT -> SCAN Apr 21 10:59:44 matebook /bsd: iwx0: end active scan Apr 21 10:59:44 matebook /bsd: iwx0: AP b6:fb:e4:9b:0d:77 "catap's Network" score 74 Apr 21 10:59:44 matebook /bsd: iwx0: AP b6:fb:e4:9b:2f:f1 "catap's Network" score 74 Apr 21 10:59:44 matebook /bsd: iwx0: AP b6:fb:e4:9b:30:ed "catap's Network" score 75 Apr 21 10:59:44 matebook /bsd: iwx0: AP b6:fb:e4:9b:48:ae "catap's Network" score 74 Apr 21 10:59:44 matebook /bsd: iwx0: - 04:53:7c:b0:f4:64 6 +13 54M ess no! rsn! "Vodafone Hotspot"! Apr 21 10:59:44 matebook /bsd: iwx0: - 06:53:7c:b0:f4:65 6 +12 54M ess no! rsn! "Vodafone Homespot"! Apr 21 10:59:44 matebook /bsd: iwx0: - 2c:91:ab:93:fc:e0 11 +18 54M ess privacy rsn "FRITZ!Box 6591 Cable IX"! Apr 21 10:59:44 matebook /bsd: iwx0: - 46:1c:a8:05:be:a1 11 +23 54M ess privacy rsn "DIRECT-a1-HP M277 LaserJet"! Apr 21 10:59:44 matebook /bsd: iwx0: - 70:4f:b8:fe:bc:dc 6 +10 54M ess privacy rsn "HD"! Apr 21 10:59:44 matebook /bsd: iwx0: - 9c:c7:a6:b8:80:ab 1 +15 54M ess privacy rsn "FRITZ!Box 6360 Cable"! Apr 21 10:59:44 matebook /bsd: iwx0: - a6:66:85:96:41:34 11 +13 54M ess privacy rsn "Speedport Gastzugang"! Apr 21 10:59:44 matebook /bsd: iwx0: - b4:fb:e4:8b:0d:77 1 +32 54M ess privacy rsn "catap's Network - IoT"! Apr 21 10:59:44 matebook /bsd: iwx0: - b4:fb:e4:8b:0d:78 64 +30 54M ess privacy rsn "catap's Network - IoT"! Apr 21 10:59:44 matebook /bsd: iwx0: + b4:fb:e4:8b:30:cc 6 +32 54M ess privacy rsn "catap's Network" Apr 21 10:59:44 matebook /bsd: iwx0: - b4:fb:e4:8b:30:ed 6 +38 54M ess privacy rsn "catap's Network - IoT"! Apr 21 10:59:44 matebook /bsd: iwx0: - b4:fb:e4:8b:48:ae 11 +52 54M ess privacy rsn "catap's Network - IoT"! Apr 21 10:59:44 matebook /bsd: iwx0: - b4:fb:e4:8b:48:af 136 +61 54M ess privacy rsn "catap's Network - IoT"! Apr 21 10:59:44 matebook /bsd: iwx0: + b6:fb:e4:9b:0d:77 1 +32 54M ess privacy rsn "catap's Network" Apr 21 10:59:44 matebook /bsd: iwx0: + b6:fb:e4:9b:0d:78 64 +29 54M ess privacy rsn "catap's Network" Apr 21 10:59:44 matebook /bsd: iwx0: + b6:fb:e4:9b:2f:f1 1 +8 54M ess privacy rsn "catap's Network" Apr 21 10:59:44 matebook /bsd: iwx0: + b6:fb:e4:9b:30:cd 40 +31 54M ess privacy rsn "catap's Network" Apr 21 10:59:44 matebook /bsd: iwx0: + b6:fb:e4:9b:30:ed 6 +38 54M ess privacy rsn "catap's Network" Apr 21 10:59:44 matebook /bsd: iwx0: + b6:fb:e4:9b:30:ee 100 +50 54M ess privacy rsn "catap's Network" Apr 21 10:59:44 matebook /bsd: iwx0: + b6:fb:e4:9b:48:ae 11 +52 54M ess privacy rsn "catap's Network" Apr 21 10:59:44 matebook /bsd: iwx0: + b6:fb:e4:9b:48:af 136 +61 54M ess privacy rsn "catap's Network" Apr 21 10:59:44 matebook /bsd: iwx0: - b6:fb:e4:ab:30:cc 6 +32 54M ess privacy rsn "catap's Network - IoT"! Apr 21 10:59:44 matebook /bsd: iwx0: - b6:fb:e4:bb:2f:f1 1 +10 54M ess privacy rsn ""! Apr 21 10:59:44 matebook /bsd: iwx0: - b6:fb:e4:bb:30:cc 6 +34 54M ess privacy rsn ""! Apr 21 10:59:44 matebook /bsd: iwx0: - b6:fb:e4:bb:30:ed 6 +46 54M ess privacy rsn ""! Apr 21 10:59:44 matebook /bsd: iwx0: - b6:fb:e4:bb:48:ae 11 +57 54M ess privacy rsn ""! Apr 21 10:59:44 matebook /bsd: iwx0: - b8:66:85:96:41:34 11 +12 54M ess privacy rsn "WLAN-63AB9B"! Apr 21 10:59:44 matebook /bsd: iwx0: - dc:39:6f:11:29:fa 1 +17 54M ess privacy rsn "Saargemuender"! Apr 21 10:59:44 matebook /bsd: iwx0: - dc:53:7c:b0:f4:62 6 +13 54M ess privacy rsn "ROLY"! Apr 21 10:59:44 matebook /bsd: iwx0: - de:39:6f:11:29:fa 1 +16 54M ess privacy rsn "Gast_Netz"! Apr 21 10:59:44 matebook /bsd: iwx0: - f4:06:8d:ba:d6:7d 1 +26 54M ess privacy rsn "Saargemuender"! Apr 21 10:59:44 matebook /bsd: iwx0: - f4:06:8d:ba:d6:7e 112 +23 54M ess privacy rsn "Saargemuender"! Apr 21 10:59:44 matebook /bsd: iwx0: - f8:2d:c0:2b:46:81 11 +25 54M ess privacy rsn "Vodafone-2C56"! Apr 21 10:59:44 matebook /bsd: iwx0: - f8:2d:c0:2b:46:82 48 +22 54M ess privacy rsn "Vodafone-2C56"! Apr 21 10:59:44 matebook /bsd: iwx0: - fa:2d:c0:2b:46:91 11 +26 54M ess no! rsn! "Vodafone Hotspot"! Apr 21 10:59:44 matebook /bsd: iwx0: - fa:2d:c0:2b:46:b1 11 +25 54M ess no! rsn! "Vodafone Homespot"! Apr 21 10:59:44 matebook /bsd: iwx0: firmware has detected regulatory domain 'DE' (0x4445) Apr 21 10:59:44 matebook /bsd: iwx0: SCAN -> AUTH Apr 21 10:59:44 matebook /bsd: iwx0: sending auth to b6:fb:e4:9b:48:af on channel 136 mode 11a Apr 21 10:59:44 matebook /bsd: iwx0: AUTH -> ASSOC Apr 21 10:59:44 matebook /bsd: iwx0: sending assoc_req to b6:fb:e4:9b:48:af on channel 136 mode 11a Apr 21 10:59:44 matebook /bsd: iwx0: received msg 1/4 of the 4-way handshake from b6:fb:e4:9b:48:af Apr 21 10:59:44 matebook /bsd: iwx0: sending msg 2/4 of the 4-way handshake to b6:fb:e4:9b:48:af Apr 21 10:59:44 matebook /bsd: iwx0: ASSOC -> RUN Apr 21 10:59:44 matebook /bsd: iwx0: associated with b6:fb:e4:9b:48:af ssid "catap's Network" channel 136 start MCS 0 long preamble long slot time HT enabled VHT enabled Apr 21 10:59:44 matebook /bsd: iwx0: missed beacon threshold set to 30 beacons, beacon interval is 100 TU Apr 21 10:59:44 matebook /bsd: iwx0: received msg 3/4 of the 4-way handshake from b6:fb:e4:9b:48:af Apr 21 10:59:44 matebook /bsd: iwx0: sending msg 4/4 of the 4-way handshake to b6:fb:e4:9b:48:af Apr 21 10:59:46 matebook /bsd: iwx0: sending addba_resp to b6:fb:e4:9b:48:af on channel 136 mode 11ac -- wbr, Kirill