So, let's try to improve the #Esp32 range with an external antenna.
I scraped the #wifi #antenna contacts and cut the trace going to the rest of the internal antenna. Then soldered the cable with the #sma connector savaged from the #fonera . The shielding of the cable goes to GND (used the multimeter to find which one is GND) and the inner to the other antenna contact.

Aaaaand it went #offline during the nignt 😅
I imagine -92dBm is not a really good figure 🫠
The electric box is at the end of a far corridor, in a part of the house where noone hangs around, so I'd prefer not to place a #WIFI repeater there.
Tonight I'll try to solder an external #antenna to the #esp32 like explained in the #homeassistant forum: https://community.home-assistant.io/t/how-to-add-an-external-antenna-to-an-esp-board/131601
I'll use the #fontenna (it's the #fon #fonera external antenna I savaged when I... ehm nuked the fonera flashing a firmware in the wrong partition 🫣 ). Will see if it improves the situation...