still doing it. 5ghz goes down and never comes back up..
[20137.513528] ath10k_pci 0000:01:00.0: mac flush null vif, drop 0 queues 0xffff
[20137.517423] ath10k_pci 0000:01:00.0: peer-unmap-event: unknown peer id 0
[20137.519746] ath10k_pci 0000:01:00.0: peer-unmap-event: unknown peer id 0
[20143.570039] ath10k_pci 0000:01:00.0: unsupported HTC service id: 1536
[20143.570572] ath10k_pci 0000:01:00.0: 10.4 wmi init: vdevs: 16 peers: 48 tid: 96
[20143.575452] ath10k_pci 0000:01:00.0: msdu-desc: 2500 skid: 32
[20143.658515] ath10k_pci 0000:01:00.0: wmi print 'P 48/48 V 16 K 144 PH 176 T 186 msdu-desc: 2500 sw-crypt: 0 ct-sta: 0'
[20143.659375] ath10k_pci 0000:01:00.0: wmi print 'free: 84920 iram: 13316 sram: 11224'
[20144.048597] ath10k_pci 0000:01:00.0: Firmware lacks feature flag indicating a retry limit of > 2 is OK, requested limit: 4
[20144.064708] br-lan: port 3(wlan0) entered blocking state
[20144.064733] br-lan: port 3(wlan0) entered disabled state
[20144.069341] device wlan0 entered promiscuous mode