Can't get the IP Address of some group members

I have 3 PCs, A B and C. They all connect fine with COMODO Unite:

  • the green flag appears at the side
  • you can chat form any to any other,
  • etc.
    They are physically connected under the same LAN.

However, when I look in the member list (of my own network)
i see the direct IP Address of only
on A and B,
C appears with no address… ???

I checked my firewall (ZoneAlarm) and
the Comodo Network is set as “trusted”,
so it should not be subject to blocks
(indeed, all other basic functions are all right).

Any idea?
Thanks.
Paolo

I installed Hamachi on the same three machines.
It shows regularly the IP address next to
each member of a group!!! :smiley:

Paolo