I to have a deauth issue. RB532 with 2 x NMP-8602. The links are short 2km max and the signal is approx. -54 dbm. The card that gives issue is in AP-bridge mode with 2 clients, RB112 with same radio card. It's not a signal strength issue in this case. The clients drop every now and again, it takes about 10 mins for the link to stabilize again. It's a client network in bridge mode using WDS, ap-bridge-station, wds dynamic mode as per the mikrotik wiki example.
log snippet.
sep/22 10:20:30 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:20:33 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:20:40 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth (2 events suppressed)
sep/22 10:20:45 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:20:50 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:20:55 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:21:00 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:21:05 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:21:10 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:21:15 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:21:20 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:21:25 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:21:30 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:21:33 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:21:40 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth (2 events suppressed)
sep/22 10:21:45 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:21:50 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:21:55 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:22:00 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:22:05 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:22:10 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:22:15 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:22:20 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:22:25 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:22:30 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:22:33 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:22:40 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth (2 events suppressed)
sep/22 10:22:45 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:22:50 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:22:55 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:23:00 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:23:05 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:23:10 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:23:15 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:23:20 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:23:25 wireless,info : data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:23:30 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:23:33 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:23:40 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth (2 events suppressed)
sep/22 10:23:45 wireless,info: data from unknown device 00:02:6F:3F:77:66, sent deauth
sep/22 10:23:50 wireless,info 00:02:6F:3F:77:66@: connected, is AP, wants WDS