Cannot connect to PCs in the network

The problem is that I cannot see the other PCs in my network.

Just followed found instructions in the forum:
enable start apps and checked with
service --status-all
if avahi-deamon & samba are running.
Effects that I can see main PC in network.

Any Ideas would be helpfull!
Same topic in Community/German
followed instructions:

Using Parrot 11 AMD64

Gretings T_five

did you check /etc/hosts
192.168.x.x yourMOO6PC
192.168.etc.etc yourmoo6pc
did you check the dmsg errors?