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By VacLab
my board should connect to the router, send the temperature, and deepsleep for a while.
My three ESP32 Thing boards all have the problem, that WLan is taking many trys to
connect to the router (1m away). If connected most of the http requests have a timeout.
The same code is running on a ESP32 NodeMCU module without any problem.
There is no difference between USB and battery power.

But when I put my finger on the antenna, the ESP32 thing works without a problem,
so I think there is something with the antenna.

Is this behaviour known, is there a workaround ?

Thanks !
Sounds like you need to contact customer service and get an exchange. It should not be doing that.