@Solla-topee 

this doesnt work  when the router itself goes down..  giving static ips from mac address's  works when the router is working

but when the router itself goes down.. the devices go down.. and if you reboot the wifi router/ap  then you totally loose everything

so i currently do dhcp reservation aka  static ips for mac address''s of the tplink switchs

but they become usless once the main router goes down...  so you should be able to manually add IP Address's  so  if the main router goes down... the ip address's stay in the switchs and plugs   and will continue to work..  

just like Shelly Devices ,, or ESPHome Device... you can set the ip address  and this way if there is a failure of your main router.. your entire tplink system goes down all at once...  so be nice  they dont just rely on a working main router

and once the router is working again  it usually fixes the light switchs etc...  but i was meaning  if the router itself crashes  and no longer offers giving ips internet or anything basiclly say the router is turned off...  the wifi devices should still talk to each other  through the AP/wifi router...