I've found that moving the probe between networks can cause this.

Mine took almost 48 hours to return to normal operations.

Please email me off list with your Atlas email address and I can transfer you some credits for your research :)

On 16 February 2016 at 18:29, <sarah.wassermann@student.ulg.ac.be> wrote:
Hi,

I have (once again) problems with my probe (probeID: 24102). This time, it got tagged as "system: Firewall problem suspected". The strange thing is that I did not touch anything on my router when this happened and did not change any other configuration...
This probe is located in Luxembourg. I now brought it to Belgium and plugged it into the router I have here. Nothing changed. Furthermore, here in Belgium, its 3rd light is slowly blinking, which let's suppose that it gets tuck in the network-testing phase.

Anybody knows how to fix this?

(I already had some problems with that probe ("system: Hardware problem suspected") but I could solve them thanks to a hint given by a user.)

My worst problem is that, due to this issue, we have difficulties earning enough credits for our research... So I would be really happy if this problem could be solved easily :(

Thanks!

Sarah