[atlas] Probe reported as disconnected but is actually online

Hi there,

Today I had a power failure at home and since then, my probe's state is "disconnected", but I
checked the network traffic and it looks like the probe is actually able to reach the internet and
is doing some DNS requests I don't know about:

U431.M<PROBES MAC>.sos.atlas.ripe.net
U980.M<PROBES MAC>.sos.atlas.ripe.net
U116.M<PROBES MAC>.sos.atlas.ripe.net

Do you know what those SOS requests mean? The SOS history on the atlas.ripe.net page doesn't show
any useful message.

The Status (beta) tab shows the following message:

=====

Firewall Problems Suspected
What does this mean?
Probes connect to the controlling infrastructure using SSH (via port 443). If our system detects
that the probe is successfully engaged in other kinds of activities, but these SSH connections
fail, then it's highly likely that these connections are somehow blocked or disturbed.

This could be because there's a firewall blocking these connections. Another reason could be that
there is a (transparent) proxy in the way that affects port 443 (usually HTTPS) connections, which
means the probe and its controller cannot mutually authenticate each other (because the proxy is
interfering).

How can I fix this?
Check whether you have a firewall or an aggressive NAT appliance preventing such connections. Also
check whether there's a transparent proxy on the path. Alternatively, you can try plugging in the
probe on a different network to confirm whether a firewall / proxy is really causing the problem.

=====

But since I don't know which host the probe is trying to connect to, I can't really test it and tcpdump doesn't show any attempt to a port 443.


Thanks
Boris