Yeelight unavailable at times after .54 release

[MadMax1412 (Max Schafer)]

@sparkydave

Also, you haven’t recently done a firmware upgrade on the Yeelights at all have you? Because HA needs developer mode / LAN access turned on, which automatically gets turned off each time you do a firmware upgrade

Yep this was the culprit. I’ll try (at my age, I can’t offer any guarantees ) to remember this in future.

Thanks for your help.