selfie cam: lots of baseaddr switching errors when streaming over network

lots of baseaddr errors when streaming with

v4l2-ctl -d "/dev/v4l/by-path/platform-30a90000.csi1_bridge-video-index0" --set-fmt-video=width=1280,height=720,pixelformat=0 --set-ctrl=analogue_gain=240,digital_gain=8000 --stream-mmap --stream-to-host=$IP

I stream over wifi. 640x480 streams ok (with dropped frames still)