[atlas] Your probe is currently disconnected

Hi!
I've applied for an Atlas probe v3 and got one via postage.

So, I've connected the probe to my network.
I can see in my DNSMasq logs, that the probe gets successfully an IP
address. It can be pinged without any problems.

But that's all. Even after 24 hours it's still reported not connected.

I can see multiple LEDs:
1 (power): on
2: off
3: slow blink
4: fast blink
5 (button): on

I can't find that in the FAQ, the LEDs should light different.
The FAQ also did mention to try first without USB and insert USB later.
Or try to replace the USB. Both cases did not help.

If I connect my ThinkPad instead the probe with the same network 
connection (cable and port), it can access the internet just fine 
without any problems.. I've no clou, what could be wrong. Any ideas?

Thanks!
Conrad

Viele Grüße
Conrad Kostecki