Ok,
I have a new lead...
I tested the raspberry pi with a raspberian on a SD card, everything works. When I switch the raspberian to a SSD, I get problems with the WiFi. When I put the SSD in the lower usb 3 port. No WiFi works. When I put it in the upper usb3 port, raspberry can find some WiFi AP. But when it should connect, it doesn't work.
So I startet to search for that kind of problem and it seems to be a power problem. I have the official raspberry power supply. (5,1V 3A)

So, next I will try a astroberry on a SD card and test if everything is working.
In the end I want the SSD for better performance.
Does someone have an advice? Maybe a powered usb hub is necessary? Which can be recommended? How should I connect the stuff in the end?

Greetings.

Read More...