It is normal behaviour to have them locked to 2.4ghz (just like any other wifi smart things). And it is better that way as 2.4ghz has a longer wifi range than 5ghz.
I have some hue light (ZigBee) for some years and they are rock solid but pricey. That being said, another possibility for your issue could be wifi interference, you could try to analyse and change wifi Channel on your router to see if it gets better.
What papalonian said is right, when this machine came out it was expensive but as today standard, this machine isn't worth much so don't spend a lot of money on it. Every plastic part that you see can be printed with your printer. Should be available in their GitHub page.
Nonetheless, it's a great printer to learn 3d printing
I have forgotten about bubble card, thanks.
Started a test with a vertical stack then insert horizontal stack. I've tried with mushroom card but might replace those with bubble card
Cura can ignore what's below buildplate as long as part isn't too big for X Y axes.
For cutting this, I would use 3d builder. Very easy to use. Just open model, and go to modify to cut model
While turning down temperature might help as it will be less fluid, i tend to think that increasing retraction might give him other problems (unless is settings are really low). On pictures we only see stringing at the top where printing areas are very small which means much more retraction are needed. His issue could be related to maximum retraction count and/or minimum extrusion distance, when those numbers are reached, printer will not retract filament to protect grinding too much filament. Others parameters to look out are retraction speed and prime speed but since OP didn't share settings, no way to tell what he could try.
Wondering something, Can you get wireguard client to only be used for HA app and leave everything else threw normal routing on your phone? (Not sure I have proper wording). So that wireguard will always be on but only being used for HA app
That is useful but I guess you can't get HA app notifications unless you toggle that setting on your phone? You are using telegram or else for that purpose?
Mines are not outdoor rated, they are just bulb behind (don't know the word in English) https://duckduckgo.com/?q=applique+ext%C3%A9rieure+lumi%C3%A8re+&t=fpas&iax=images&ia=images
Here is one outside rated (but should have more available) https://www.bestbuy.com/site/philips-hue-white-welcome-outdoor-floodlight-black/6326654.p?skuId=6326654
It is normal behaviour to have them locked to 2.4ghz (just like any other wifi smart things). And it is better that way as 2.4ghz has a longer wifi range than 5ghz.