I have setup a Pi Zero v 1.1 & Camera with latest Raspian Buster Lite to replace an old Drone Camera which has failed. I have it running as a router using this url and streaming the video fine from here. The problem is the WiFi keeps cutting out every 30 - 60 secs and staying off for 30 to 120 secs. By a lot of searching I discovered that the WiFi Power Saving was enabled by using this command:
sudo journalctl | grep brcmfmac
gave this result:
brcmf_cfg80211_set_power_mgmt: power save enabled
So more searching I found this from this forum as a way to disable the Power saving which works as shown by issuing the command:
sudo systemctl enable [email protected]
and then the command above to show the result on a reboot:
brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Oct 22 2019 01:59:28 version 188.8.131.52 (r723000 CY) FWID 01-3b33decd
brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
brcmf_cfg80211_set_power_mgmt: power save disabled
It would seem that the Power Saving has been disabled, but this has made no difference to the behavior. The WiFi is still cutting out.
I would be delighted to overcome this and save buying a new drone!