in the Connections\PowerStoreConnection.php file, what is the Host address set to? try using localhost
It could also be a fire wall issue, try turning any firewalls you have installed to see if there is a fire wall conflict.
als try checking this page for details:
an-attempt-was-made-to-access-a-socket-in-a-way-forbidden-by-its-access-permissions-make_sock-could-not-bind-to-address-0-0-0-080/