ifconfig iwx0 debug, reconnect:
Feb 16 03:00:17 matebook /bsd: iwx0: using firmware iwx-QuZ-a0-hr-b0-77 Feb 16 03:00:17 matebook /bsd: iwx0: begin active scan Feb 16 03:00:17 matebook /bsd: iwx0: INIT -> SCAN Feb 16 03:00:21 matebook /bsd: iwx0: end active scan Feb 16 03:00:21 matebook /bsd: iwx0: AP b4:fb:e4:8b:30:cc "catap's Network" score 74 Feb 16 03:00:21 matebook /bsd: iwx0: AP b4:fb:e4:8b:30:ed "catap's Network" score 74 Feb 16 03:00:21 matebook /bsd: iwx0: AP b4:fb:e4:8b:48:ae "catap's Network" score 74 Feb 16 03:00:21 matebook /bsd: iwx0: best AP b4:fb:e4:8b:48:af "catap's Network" score 77 Feb 16 03:00:21 matebook /bsd: iwx0: switching to network "catap's Network" Feb 16 03:00:21 matebook /bsd: iwx0: - 04:53:7c:b0:f4:64 1 +7 54M ess no! rsn! "Vodafone Hotspot"! Feb 16 03:00:21 matebook /bsd: iwx0: - 06:53:7c:b0:f4:65 1 +5 54M ess no! rsn! "Vodafone Homespot"! Feb 16 03:00:21 matebook /bsd: iwx0: - 2c:91:ab:93:fc:df 116 +19 54M ess privacy rsn "FRITZ!Box 6591 Cable IX"! Feb 16 03:00:21 matebook /bsd: iwx0: - 3c:37:12:81:9a:d7 44 +21 54M ess privacy rsn "FRITZ!Box 6591 Cable IX"! Feb 16 03:00:21 matebook /bsd: iwx0: - 46:1c:a8:05:be:a1 1 +24 54M ess privacy rsn "DIRECT-a1-HP M277 LaserJet"! Feb 16 03:00:21 matebook /bsd: iwx0: - 70:4f:b8:fe:bc:dc 6 +13 54M ess privacy rsn "HD"! Feb 16 03:00:21 matebook /bsd: iwx0: - 70:4f:b8:fe:bc:dd 36 +17 54M ess privacy rsn "HD"! Feb 16 03:00:21 matebook /bsd: iwx0: - 9c:c7:a6:b8:80:ab 1 +9 54M ess privacy rsn "FRITZ!Box 6360 Cable"! Feb 16 03:00:21 matebook /bsd: iwx0: + b4:fb:e4:8b:0d:77 6 +28 54M ess privacy rsn "catap's Network" Feb 16 03:00:21 matebook /bsd: iwx0: + b4:fb:e4:8b:0d:78 40 +40 54M ess privacy rsn "catap's Network" Feb 16 03:00:21 matebook /bsd: iwx0: + b4:fb:e4:8b:30:cc 1 +26 54M ess privacy rsn "catap's Network" Feb 16 03:00:21 matebook /bsd: iwx0: + b4:fb:e4:8b:30:cd 100 +42 54M ess privacy rsn "catap's Network" Feb 16 03:00:21 matebook /bsd: iwx0: + b4:fb:e4:8b:30:ed 1 +41 54M ess privacy rsn "catap's Network" Feb 16 03:00:21 matebook /bsd: iwx0: + b4:fb:e4:8b:30:ee 64 +45 54M ess privacy rsn "catap's Network" Feb 16 03:00:21 matebook /bsd: iwx0: + b4:fb:e4:8b:48:ae 11 +44 54M ess privacy rsn "catap's Network" Feb 16 03:00:21 matebook /bsd: iwx0: + b4:fb:e4:8b:48:af 136 +63 54M ess privacy rsn "catap's Network" Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:ab:0d:77 6 +29 54M ess privacy rsn "catap's Network - IoT"! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:ab:0d:78 40 +42 54M ess privacy rsn "catap's Network - IoT"! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:ab:2f:f1 11 +10 54M ess privacy rsn "catap's Network - IoT"! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:ab:2f:f2 128 +13 54M ess privacy rsn "catap's Network - IoT"! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:ab:30:cc 1 +27 54M ess privacy rsn "catap's Network - IoT"! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:ab:30:cd 100 +43 54M ess privacy rsn "catap's Network - IoT"! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:ab:30:ed 1 +41 54M ess privacy rsn "catap's Network - IoT"! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:ab:30:ee 64 +47 54M ess privacy rsn "catap's Network - IoT"! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:ab:48:ae 11 +45 54M ess privacy rsn "catap's Network - IoT"! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:ab:48:af 136 +64 54M ess privacy rsn "catap's Network - IoT"! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:bb:2f:f1 11 +12 54M ess privacy rsn ""! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:bb:2f:f2 128 +13 54M ess privacy rsn ""! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:bb:30:cc 1 +27 54M ess privacy rsn ""! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:bb:30:cd 100 +43 54M ess privacy rsn ""! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:bb:30:ed 1 +42 54M ess privacy rsn ""! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:bb:30:ee 64 +47 54M ess privacy rsn ""! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:bb:48:ae 11 +48 54M ess privacy rsn ""! Feb 16 03:00:21 matebook /bsd: iwx0: - b6:fb:e4:bb:48:af 136 +64 54M ess privacy rsn ""! Feb 16 03:00:21 matebook /bsd: iwx0: - dc:39:6f:11:29:fa 6 +10 54M ess privacy rsn "Saargemuender"! Feb 16 03:00:21 matebook /bsd: iwx0: - dc:53:7c:b0:f4:62 1 +5 54M ess privacy rsn "ROLY"! Feb 16 03:00:21 matebook /bsd: iwx0: - de:39:6f:11:29:fa 6 +11 54M ess privacy rsn "Gast_Netz"! Feb 16 03:00:21 matebook /bsd: iwx0: - f4:06:8d:ba:d6:7d 11 +19 54M ess privacy rsn "Saargemuender"! Feb 16 03:00:21 matebook /bsd: iwx0: - f4:06:8d:ba:d6:7e 112 +29 54M ess privacy rsn "Saargemuender"! Feb 16 03:00:21 matebook /bsd: iwx0: - f8:2d:c0:2b:46:81 11 +32 54M ess privacy rsn "Vodafone-2C56"! Feb 16 03:00:21 matebook /bsd: iwx0: - f8:2d:c0:2b:46:82 100 +36 54M ess privacy rsn "Vodafone-2C56"! Feb 16 03:00:21 matebook /bsd: iwx0: - fa:2d:c0:2b:46:91 11 +32 54M ess no! rsn! "Vodafone Hotspot"! Feb 16 03:00:21 matebook /bsd: iwx0: - fa:2d:c0:2b:46:b1 11 +32 54M ess no! rsn! "Vodafone Homespot"! Feb 16 03:00:21 matebook /bsd: iwx0: firmware has detected regulatory domain 'DE' (0x4445) Feb 16 03:00:21 matebook /bsd: iwx0: SCAN -> AUTH Feb 16 03:00:21 matebook /bsd: iwx0: sending auth to b4:fb:e4:8b:48:af on channel 136 mode 11a Feb 16 03:00:21 matebook /bsd: iwx0: AUTH -> ASSOC Feb 16 03:00:21 matebook /bsd: iwx0: sending assoc_req to b4:fb:e4:8b:48:af on channel 136 mode 11a Feb 16 03:00:21 matebook /bsd: iwx0: received msg 1/4 of the 4-way handshake from b4:fb:e4:8b:48:af Feb 16 03:00:21 matebook /bsd: iwx0: sending msg 2/4 of the 4-way handshake to b4:fb:e4:8b:48:af Feb 16 03:00:21 matebook /bsd: iwx0: ASSOC -> RUN Feb 16 03:00:21 matebook /bsd: iwx0: associated with b4:fb:e4:8b:48:af ssid "catap's Network" channel 136 start MCS 0 long preamble long slot time HT enabled VHT enabled Feb 16 03:00:21 matebook /bsd: iwx0: missed beacon threshold set to 30 beacons, beacon interval is 100 TU Feb 16 03:00:21 matebook /bsd: iwx0: received msg 3/4 of the 4-way handshake from b4:fb:e4:8b:48:af Feb 16 03:00:21 matebook /bsd: iwx0: sending msg 4/4 of the 4-way handshake to b4:fb:e4:8b:48:af Feb 16 03:00:24 matebook /bsd: iwx0: sending addba_resp to b4:fb:e4:8b:48:af on channel 136 mode 11ac Thus, disabling 5Ghz does help. that lead me to dig an issue on network settings side. After poking around I've discovered that settings which triggers an issue is "Minimum Data Rate Control" inside Unifi UI. It has settings for 5Ghz network: 6, 9, 12 and 24 mbps. Old one was 12 (or 24), anyway, an issue happening when this settings is 12 or 24 mbps. -- wbr, Kirill