On Fri, Feb 23, 2018 at 12:54 PM, Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx> wrote: > Yup. Windows firmware talks NDIS. If you run 'strings 4345r6rtecdc.bin | > tail -1' you can see the firmware build target and it likely has 'ndis' in > it. 43455c0-roml/sdio-ag-ndis-vista-pktfilter-d0c-pno-aoe-p2p-dhdoid-ndoe-gtkoe-mfp-proptxstatus-dmatxrc-keepalive-ap-ampduretry-pclose-txbf Yes, ndis. So no easy way to run the same firmware on the 2 OSes. > Now are you using BT as well on this device? Another suggestion I got is to > disable transmit beamforming which brcmfmac enables by default. Not sure if > this device supports it, but could you try the patch below. Thanks for the ideas. I had already tried with the bluetooth disabled - no change there. Also reproduced the problem after applying your patch. Daniel